| 单词 | single-celled |
| 例句 | Fadi felt like a hairy single-celled paramecium, immobilized under a microscope, squashed between two plates of glass. Shooting Kabul 2010-06-22T00:00:00Z Mosquitoes of the genus Anopheles may inject into the human bloodstream the single-celled organism of malaria. Silent Spring 1962-09-27T00:00:00Z Fadi added a few finishing touches to his drawings of amoebas and other single-celled micro-organisms, which the class had been reviewing. Shooting Kabul 2010-06-22T00:00:00Z Like every other animal on this planet, we’re descended from a single-celled organism that lived millions of years ago. Ready Player One: A Novel 2011-08-16T00:00:00Z The Earth Woman was eleven years old, Chacko said, when the first single-celled organisms appeared. The God of Small Things 1997-01-01T00:00:00Z In principle, the single-celled embryo does possess all the genetic information to specify a full organism. The Gene 2016-06-02T00:00:00Z These formed single-celled life, which, he says, inevitably led to multicellular life, and eventually all animals and plants. Ask a grown-up: what is the answer to life, the universe and everything? 2012-11-09T23:00:38Z At last it was ready; the cake was all set, And just the right size for my single-celled pet. Meet Kenn Nesbitt, the New Children’s Poet Laureate 2013-06-15T14:58:08Z There, a branching orb traces 460 species, including humans, back to the last universal common ancestor, or LUCA, a small single-celled organism thought to be the common origin of all current life on earth. European Museums Get Adventurous With Virtual Reality 2018-03-12T04:00:00Z Published this month, “Tasty” tells the story of the evolution of flavor, from the first bite by a single-celled organism to the proliferation of flavor combinations that today’s chefs are only beginning to unearth. Taste preference is the subject of a new book by a Silver Spring writer 2015-01-25T05:00:00Z For the first 2 billion years of its existence, life was relatively simple, divided between the bacteria and the archaea, two groups of single-celled organisms with different takes on metabolic chemistry. Heart of the matter 2015-04-30T04:00:00Z The earliest single-celled organisms on Earth simply cloned themselves. Animal penises’ amazing evolution 2012-06-12T15:40:00Z Silver bioaccumulates and is toxic to single-celled organisms and aquatic invertebrates; a 2010 study found that runoff containing silver particles dramatically reduced the reproductive capabilities of mollusks in San Francisco Bay. EPA lets pesticides on the market untested 2013-03-28T18:45:00Z Chlamydomonas cells, like those of many other algae and single-celled protists, can grow very large before they divide. New discovery on how green algae count cell divisions illuminates key step needed for the evolution of multicellular life 2023-11-13T05:00:00Z Instead, tests have indicated the source of the pink hue was likely halobacteria, a type of archaea, or single-celled organism that thrive in bodies of water with high levels of salt, the service said. A Pond in Hawaii Turned Pink, Raising an Environmental Red Flag 2023-11-11T05:00:00Z The preliminary theory is that halobacteria, a single-celled organism that thrives in high-salinity environments, has bloomed and turned the water pink. Tiny organism may have turned a pond in a Maui wildlife refuge a vibrant shade of pink 2023-11-11T05:00:00Z Halobacteria are a type of archaea or single-celled organism that thrive in bodies of water with high levels of salt. Wildlife refuge pond in Hawaii mysteriously turns bright pink. Drought may be to blame 2023-11-09T05:00:00Z For most of Earth’s history, life consisted mainly of single-celled organisms. Our Evolutionary Past Can Teach Us about AI’s Future 2023-11-07T05:00:00Z "These light fingerprints are what you'd search for elsewhere, if you were looking for something more advanced than a single-celled organism." 'Jurassic worlds' might be easier to spot than modern Earth 2023-11-02T04:00:00Z Cutaneous leishmaniasis, the most common form of leishmaniasis affecting humans, is a skin infection caused by a single-celled parasite that is transmitted by the bite of a sand fly. Texas sand fly may carry parasites that cause disfiguring skin disease, CDC says 2023-10-30T04:00:00Z "Not a single study that we found in the literature violated the rules we discovered in the electric fish, not even single-celled organisms like amoeba sensing an electric field," Cowan said. To navigate the world, we all shimmy like these electric fish 2023-10-26T04:00:00Z For years, scientists have thought that the spiny balls found individually were the dormant cysts of single-celled life. Bizarre new fossils shed light on ancient plankton 2023-10-25T04:00:00Z After animals and plants evolved, bacteria and other single-celled organisms persisted. Our Evolutionary Past Can Teach Us about AI’s Future 2023-11-07T05:00:00Z The materials derive their luminescence from single-celled algae known as dinoflagellates. Soft, living materials made with algae glow under stress 2023-10-20T04:00:00Z Most are microscopic, single-celled organisms like amoebas, algae, and diatoms, but larger multicellular protists exist -- such as kelp, slime moulds, and red algae. The end of genes: Routine test reveals unique divergence in genetic code 2023-10-05T04:00:00Z It's commonly understood that the first eukaryotic cells resulted from the fusion of an early form of bacteria with an archaeon, a single-celled organism similar to a bacterium. A hygiene program for chromosomes 2023-10-02T04:00:00Z Foraminifera are tiny, single-celled organisms that live in the oceans. Researchers discover a new species of larger benthic foraminifer from the Ryukyu Islands 2023-09-19T04:00:00Z Researchers have long known that corals maintain a mutually beneficial relationship with the single-celled algae that call the animals’ tissue home. Like hard-working farmers, corals cultivate and eat their resident algae 2023-08-22T04:00:00Z A lot of them were methanogenic archaea — simple, single-celled microbes that produce methane after consuming hydrogen and carbon oozing out of rocks or in decaying organic matter. Cells Discovered Making ‘Dark Oxygen’ Underground 2023-08-22T04:00:00Z He examined Ross’ specimens in 1819 and reported they were brimming with single-celled algae. Algae blooms that cause pink snow could accelerate melting as Earth warms 2023-07-21T04:00:00Z The microscopic, single-celled organism is typically found in warm bodies of water, such as ponds, lakes, rivers and hot springs. ‘Brain-eating amoeba’ kills man in Pakistan 2023-07-05T04:00:00Z From these samples, Sonnenburg and his team sequenced more than 90,000 genomes from microbes found in the human gut, including bacteria, viruses that infect bacteria, and single-celled organisms from groups called archaea and eukaryotes. Modern Hunter-Gatherers Have Thriving Gut Microbiome, Compared with Californians 2023-06-26T04:00:00Z The strain of Toxoplasma gondii, the single-celled parasite that causes the disease toxoplasmosis, has never been recorded before in the U.S., is unusually virulent, and could pose a threat to other mammals—including people. Why 4 dead California sea otters have scientists so alarmed 2023-05-31T04:00:00Z Last month, researchers in the United States identified a single-celled parasite responsible for a similar mass die-off of sea urchins in the Caribbean that has laid waste to reef ecosystems. Red Sea corals threatened by mass sea urchin die-off, Israeli researchers say 2023-05-24T04:00:00Z Members of this subgroup range in size from single-celled diatoms to the massive and multicellular kelp. Fundamentals of Biology 2015-01-01T00:00:00Z Prokaryotes are single-celled organisms that lack organelles surrounded by a membrane and do not have nuclei surrounded by nuclear membranes; in contrast, the cells of eukaryotes do have membrane-bound organelles and nuclei. Concepts of Biology 2013-04-25T00:00:00Z Sponges also have a type of specialized cell called a choanocyte, which resembles choanoflagellates—the single-celled relatives of more complex life. Comb jelly ancestor may have been first animal to branch from tree of life 2023-05-17T04:00:00Z A study published on May 17 in Nature resolves the relationships of these early animals by looking at the chromosomes of sponges, comb jellies, jellyfish and three close single-celled relatives of animals. The Closest Living Relative of the First Animal Has Finally Been Found 2023-05-17T04:00:00Z One of the greatest transformations in the history of life occurred more than 600 million years ago, when a single-celled organism gave rise to the first animals. Bizarre Sea Creatures Illuminate the Dawn of the Animal Kingdom 2023-05-17T04:00:00Z The zygote undergoes mitosis without cytokinesis, resulting in a single-celled, multinucleate mass visible to the naked eye. Fundamentals of Biology 2015-01-01T00:00:00Z Even very simple, single-celled organisms are remarkably complex. Concepts of Biology 2013-04-25T00:00:00Z These strange snowflakes are at the heart of experiments exploring what might have happened millions of years ago when single-celled creatures first banded together to become multicellular. An Experiment Repeated 3,000 Times Finds Hints to Evolution’s Secrets 2023-05-10T04:00:00Z A tiny single-celled parasite is to blame for the massive die-off, researchers reported Wednesday in the journal Science Advances. Mystery solved: Scientists ID Caribbean sea urchin killer 2023-04-19T04:00:00Z His team tracked the movements of genetic material in the chromosomes of nine animals, along with three single-celled relatives of animals. Bizarre Sea Creatures Illuminate the Dawn of the Animal Kingdom 2023-05-17T04:00:00Z The image on the left shows a choanoflagellate, which is a single-celled protest. Fundamentals of Biology 2015-01-01T00:00:00Z It is in some ways analogous to the process of binary fission of single-celled prokaryotic organisms. Concepts of Biology 2013-04-25T00:00:00Z The only system known to exhibit this is Earth’s biosphere—an ongoing, multibillion-year evolutionary explosion of biodiversity that ultimately traces back to simple, single-celled ancestral organisms. Life Evolves. Can Attempts to Create ‘Artificial Life’ Evolve, Too? 2023-04-06T04:00:00Z But they did spot traces of tiny single-celled organisms called ciliates, which only showed up in the sick urchins. Mystery solved: Scientists ID Caribbean sea urchin killer 2023-04-19T04:00:00Z But these chunks were in a different position in comb jellies and single-celled relatives of animals. Bizarre Sea Creatures Illuminate the Dawn of the Animal Kingdom 2023-05-17T04:00:00Z Microbiology, the study of microorganisms, is the study of the structure and function of single-celled organisms. Fundamentals of Biology 2015-01-01T00:00:00Z The process by which an organism develops from a single-celled zygote to a multi-cellular organism is complex and well regulated. Concepts of Biology 2013-04-25T00:00:00Z The first single-celled organisms arose sometime during roughly the first billion years of the planet's existence. Study explains how primordial life survived on 'Snowball Earth' 2023-04-04T04:00:00Z Toxoplasma gondii—a single-celled protozoan—is capable of infecting almost every mammal and bird species, including humans, and in severe cases causes blindness, birth defects, and death. No kittens required: Scientists find new way to study toxoplasmosis parasite in lab 2023-03-30T04:00:00Z Naegleria fowleri is a single-celled organism that lives in soil and warm fresh water, such as lakes, rivers and hot springs, according to the U.S. Person dies after brain-eating amoeba infection in Florida, officials say 2023-03-03T05:00:00Z In small plants such as single-celled algae, simple diffusion suffices to distribute water and nutrients throughout the organism. Fundamentals of Biology 2015-01-01T00:00:00Z While many single-celled organisms and a few multicellular organisms can produce genetically identical clones of themselves through mitotic cell division, many single-celled organisms and most multicellular organisms reproduce regularly using another method. Concepts of Biology 2013-04-25T00:00:00Z There is ample data suggesting that single-celled organisms slowly emerged from the random assemblage of chemicals floating around in water. Did evolution occur before life even existed? New study sheds light on how amino acids "evolved" 2023-03-01T05:00:00Z Sun and Duke mycologist Joseph Heitman have described unisexual reproduction in detail in the single-celled fungus Cryptococcus, and researchers in Germany recently documented it in an edible species. Death cap mushroom’s unusual sex life may be key to its rapid spread 2023-02-02T05:00:00Z Beginning with research in the 1980s with a single-celled aquatic creature called a tetrahymena, Dr. Allis found that histone proteins were more than mere wrappers or spools, as long thought. David Allis, researcher who explored ‘on-off’ switch in genes, dies at 71 2023-01-21T05:00:00Z In some species, individual single-celled organisms come together and fuse to form a giant cell with thousands of nuclei. Fundamentals of Biology 2015-01-01T00:00:00Z In single-celled eukaryotes, lysosomes are important for digestion of the food they ingest and the recycling of organelles. Concepts of Biology 2013-04-25T00:00:00Z His microscopes indisputably proved to humanity that it shared this planet with countless single-celled organisms. The scientist who discovered sperm was so grossed out he hoped his findings would be repressed 2023-01-02T05:00:00Z Prokaryotes include bacteria and other single-celled organisms that lack organelles and have sometimes been characterized as simply “bags of proteins.” Science’s 2022 Breakthrough of the Year: A telescope’s golden eye sees the universe anew 2022-12-14T05:00:00Z These tiny, single-celled organisms are voracious predators that use a tooth-like structure to rip apart their prey bit by bit. Microbial "lions" that nibble prey to death form an entirely new branch on the tree of life 2022-12-10T05:00:00Z Labyrinthulomycetes form a network of tubes or filaments over which the single-celled organisms slide to gather food. Fundamentals of Biology 2015-01-01T00:00:00Z Not all protists are microscopic and single-celled; there exist some very large multicellular species, such as the kelps. Concepts of Biology 2013-04-25T00:00:00Z T. gondii, a single-celled parasite, only reproduces in domesticated cats and other felids. A parasite makes wolves more likely to become pack leaders 2022-11-24T05:00:00Z The rest are bacteria, viruses, parasites and other single-celled organisms. How a zombifying cat parasite called Toxoplasma gondii conquered the globe 2022-11-01T04:00:00Z Eukaryotes are such an expansive category that it includes mushrooms, dogs, trees and even protists, which are microscopic, single-celled organisms that don't really fit in the categories of plants, animals or fungi. Microbial "lions" that nibble prey to death form an entirely new branch on the tree of life 2022-12-10T05:00:00Z In a single-celled organism such as Chlamydomonas, there is no mitosis after fertilization. Fundamentals of Biology 2015-01-01T00:00:00Z Most single-celled protists are motile, but these organisms use diverse structures for transportation. Concepts of Biology 2013-04-25T00:00:00Z Even single-celled organisms have the power to transform an otherwise-habitable planet into a hostile place. Life on Mars May Have Been Its Own Worst Enemy 2022-10-28T04:00:00Z This posits that all life, from the smallest single-celled organism and on upwards to the largest animals on Earth, possesses something akin to consciousness. Why some scientists believe plants may have consciousness 2022-09-30T04:00:00Z In its waters, tiny single-celled algae called diatoms bloomed each spring and summer and then died and sank to the bottom. Exquisite Fossils Show an Entire Rain Forest Ecosystem 2022-09-13T04:00:00Z Spores disseminated by wind or water germinate into flattened thalli attached to the substrate by thin, single-celled filaments. Fundamentals of Biology 2015-01-01T00:00:00Z Another, BioSentinel, will measure the effects of radiation on the single-celled yeast Saccharomyces cerevisiae. NASA’s Artemis I Moon Mission Is ‘Go’ for Launch 2022-08-24T04:00:00Z Less sophisticated, single-celled organisms still rely totally on diffusion for the removal of waste products and the uptake of nutrients. College Physics for AP Courses 2015-08-12T00:00:00Z Even very simple, single-celled organisms are remarkably complex: inside each cell, atoms make up molecules; these in turn make up cell organelles and other cellular inclusions. Biology for AP Courses 2022-06-09T00:00:00Z In their reach for sunlight, the single-celled microbes formed mats that trapped sediments in the water above them. Astronomy 2016-10-13T00:00:00Z Unlike the elaters observed in horsetails, the hornwort pseudoelaters are single-celled structures. Fundamentals of Biology 2015-01-01T00:00:00Z To the researchers' amazement, though, they saw that the single-celled plants in the tower with the copepods routinely retreated even deeper than usual at night, putting more distance between themselves and the enemies above. Greatest Migration on Earth Happens under Darkness Every Day 2022-08-20T04:00:00Z Skeletons from this period show signs of being ravaged by an assortment of tapeworms, flukes, and single-celled protozoa that cause dysentery. Medieval friars were riddled with parasites 2022-08-18T04:00:00Z While the necessity for cellular communication in larger organisms seems obvious, even single-celled organisms communicate with each other. Biology for AP Courses 2022-06-09T00:00:00Z The crustaceans also graze on diatoms, single-celled algae that grow on the red algae. Is this pillbug-like organism a pollinator of the sea? 2022-07-27T04:00:00Z Three cell divisions transform the single-celled zygote into an eight-celled structure. Fundamentals of Biology 2015-01-01T00:00:00Z For the first half of its existence, Earth sported an atmosphere without oxygen, even though it hosted simple, single-celled life. How the James Webb telescope will search for alien life 2022-07-24T04:00:00Z Eating your own kind is fairly common throughout the animal world, from single-celled amoebas to salamanders, he and his colleagues report in a new review in Ecology. Why some animals turn cannibal 2022-07-19T04:00:00Z Why is signaling in multicellular organisms more complicated than signaling in single-celled organisms? Biology for AP Courses 2022-06-09T00:00:00Z Asexual reproduction in single-celled organisms occurs through cell division. Miller & Levine Biology 2018-01-01T00:00:00Z The left part of the illustration shows a single-celled zygote. Fundamentals of Biology 2015-01-01T00:00:00Z Malaria is an infectious disease spread by mosquitoes but caused by a single-celled parasite called Plasmodium. Environmental Biology 2018-09-06T00:00:00Z The vast majority of life today consists of soft-bodied and/or single-celled organisms, and will not likely be preserved in the geologic record except under unusual conditions. An Introduction to Geology 2017-01-01T00:00:00Z Multicellular organisms require more time for signal transduction than single-celled organisms, as they show compartmentalization. Biology for AP Courses 2022-06-09T00:00:00Z Because single-celled organisms were significantly different from plants and animals, researchers placed all microorganisms in kingdom Protista. Miller & Levine Biology 2018-01-01T00:00:00Z Many are single-celled, and therefore have organelles for perception and movement. Anatomy and Physiology 2013-06-19T00:00:00Z DNA is the genetic material found in all organisms, ranging from single-celled bacteria to multicellular mammals. Environmental Biology 2018-09-06T00:00:00Z Some of the best fossils for biostratigraphic correlation are microfossils, most of which came from single-celled organisms. An Introduction to Geology 2017-01-01T00:00:00Z Evaluate the claim that the use of both a strong and weak selection demonstrates that evolution is an ongoing process that, under artificially imposed conditions, led to the emergence of multicellularity in a single-celled organism. Biology for AP Courses 2022-06-09T00:00:00Z Because bacteria lack nuclei, mitochondria, and chloroplasts, all prokaryotes were placed in kingdom Monera, while single-celled eukaryotic organisms remained in kingdom Protista. Miller & Levine Biology 2018-01-01T00:00:00Z This step completes the process of fertilization and results in a single-celled diploid zygote with all the genetic instructions it needs to develop into a human. Anatomy and Physiology 2013-06-19T00:00:00Z From single-celled organisms to creatures made of many trillions of cells, life has taken on many wonderful shapes and evolved countless strategies for survival. Environmental Biology 2018-09-06T00:00:00Z From 3,500 Ma to 542 Ma, or 88% of geologic time, the predominant life forms were single-celled organisms such as bacteria. An Introduction to Geology 2017-01-01T00:00:00Z Figure 19.1 Living things may be single-celled or complex, multicellular organisms. Biology for AP Courses 2022-06-09T00:00:00Z After the first prokaryotic cells evolved, all life remained single-celled for about 3 billion years. Miller & Levine Biology 2018-01-01T00:00:00Z “Given their size, I never imagined them to be single-celled bacteria.” Scientists baffled by discovery of bacteria that ought to be too big to function 2022-06-23T04:00:00Z When he put the dental plaque under a primitive microscope, he was astonished to see single-celled organisms swimming about. You Don’t Need a Microscope to See the Biggest Bacteria Ever Found 2022-06-23T04:00:00Z It’s full of single-celled organisms known as protists. Huge plan to map the DNA of all life in British Isles 2022-06-13T04:00:00Z If a cell is a single-celled microorganism, such as an amoeba, it can satisfy all of its nutrient and waste needs through diffusion. Biology for AP Courses 2022-06-09T00:00:00Z And Sirjana correctly spelled puerilely — childish — and radiolarian — a single-celled marine animal having a spherical body with threadlike projections. 3 Seattle-area teens advance to quarterfinals in the Scripps National Spelling Bee 2022-05-31T04:00:00Z The new study’s worrisome finding crystalized when Nelsen and other Field Museum researchers were examining the climate preferences of lichens powered by a genus of single-celled green alga called Trebouxia. Lichens Could Need More than a Million Years to Adapt to Climate Change 2022-02-15T05:00:00Z The single-celled organisms have evolved into a riotous array of species, colors and shapes. These Shellfish Could Kill You 2022-01-24T05:00:00Z Life on Earth began with single-celled organisms, and we could not exist without them. Huge plan to map the DNA of all life in British Isles 2022-06-13T04:00:00Z Like all single-celled organisms, V. ventricosa exchanges gases across the cell membrane. Biology for AP Courses 2022-06-09T00:00:00Z Then came the painstaking process of sifting out and identifying the samples’ foraminifera — single-celled organisms that build intricate shells around themselves using minerals in the ocean. This Ocean Invaded Its Neighbor Earlier Than Anyone Thought 2021-11-27T05:00:00Z The next day, Epstein asked “to be single-celled” but was told he could not be housed alone “for safety and security concerns.” Jeffrey Epstein’s final days: Celebrity reminiscing and a running toilet 2021-11-23T05:00:00Z Then come single-celled animals that feed on the colonies, and the larger predators that in turn feed on them. Marine researchers focus on the tiniest victims of Orange County oil spill 2021-10-09T04:00:00Z But there was an exception: Certain species of single-celled organisms called archaea that thrive in extremely hot and acidic environments had a mutation that replaced this amino acid with another. Antiaging advice from single-celled creatures: Build better proteins 2021-09-14T04:00:00Z Like all single-celled organisms, V. ventricosa exchanges gases across the cell membrane. Biology for AP Courses 2022-06-09T00:00:00Z Babesia is a protozoan, a single-celled parasitic organism, carried by the deer tick. He Passed Out Three Times in 10 Days. What Was Wrong? 2021-08-26T04:00:00Z Trillions of bacteria, fungi, viruses and other single-celled organisms reside in the gastrointestinal tract in a dynamic, commensal ecosystem. Gut Reactions: Microbes in the Digestive Tract Influence COVID Severity 2021-06-24T04:00:00Z Those shifts wiped out many aquatic species, including numerous species of single-celled algae and other small free-floating organisms, the researchers report. The rise and fall of the world’s largest lake 2021-06-04T04:00:00Z “Recent work has shown that ultraviolet light might be very important for catalyzing life — turning complex molecules into amino acids and ultimately into single-celled organisms,” she said. Will the Next Space-Weather Season Be Stormy or Fair? 2021-05-28T04:00:00Z During cleavage, the cells divide without an increase in mass; that is, one large single-celled zygote divides into multiple smaller cells. Biology for AP Courses 2022-06-09T00:00:00Z I wrote recently about how Stentor, the enormous trumpet-shaped, single-celled predator, may be capable of changing its “mind.” Can a Cell Remember? 2021-05-28T04:00:00Z Ravenous, single-celled slime molds, meanwhile, appear to make decisions and solve problems in their quest for nutrition, which encourages us to rethink our understanding of what “thinking” is. Review | The surprisingly elusive definition of ‘life’ 2021-03-24T04:00:00Z Most of these resident viruses infect the bacteria, fungi and other single-celled organisms that live inside us. Opinion | The Secret Life of a Coronavirus 2021-02-26T05:00:00Z Half of the world’s photosynthesis takes place in single-celled organisms floating on the ocean. Even Tiny Phytoplankton Have Microbiomes 2021-02-19T05:00:00Z Therefore, cells must either be small in size, as in the case of many prokaryotes, or be flattened, as with many single-celled eukaryotes. Biology for AP Courses 2022-06-09T00:00:00Z It was found within amoebas, which are single-celled eukaryotes. How viruses shape our world 2021-01-14T05:00:00Z Naegleria fowleri is a free-living microscopic amoeba, or single-celled living organism commonly found in warm freshwater and soil, according to the US Centers for Disease Control and Prevention. Texas residents warned of tap water tainted with brain-eating microbe 2020-09-26T04:00:00Z Naegleria fowleri is a free-living microscopic amoeba, or single-celled living organism commonly found in warm freshwater and soil, according to the U.S Centers for Disease Control and Prevention. Houston-area water may be tainted with brain-eating microbe 2020-09-26T04:00:00Z Phytoplankton are typically single-celled photosynthetic organisms that form the foundation of aquatic food chains. Sometimes Food Fights Back 2020-09-18T04:00:00Z Multicellular organisms coordinate between distantly located cells; single-celled organisms communicate only with nearby cells. Biology for AP Courses 2022-06-09T00:00:00Z A new study suggests single-celled organisms—and even individual cancer cells—are just as adept, using chemical signals to find their way through complex mazes hundreds of times their size. Watch amoebas solve a microscopic version of London’s Hampton Court Maze 2020-08-27T04:00:00Z Corals grow through a symbiotic relationship between animal coral polyps that build the hard calcium carbonate skeletons of the reefs and single-celled organisms that survive via photosynthesis and feed the polyps nutrients. Australia Floats Plan to Better Protect Great Barrier Reef 2020-08-25T04:00:00Z Many microbiology textbooks contain a nod to the importance of predators like phages and protists, a group of mostly single-celled microbes whose cells resemble those of animals. How Bacteria-Eating Bacteria Could Help Win the War Against Germs 2020-08-25T04:00:00Z In the ocean, the best-known host systems for RNA viruses are the single-celled algae, particularly diatoms, but other phytoplankton and protists serve similarly. The Ocean Carries ‘Memories’ of SARS-CoV-2 2020-08-15T04:00:00Z Multicellular organisms involve receptors for signaling; single-celled organisms communicate by fusion of plasma membrane with the nearby cells. Biology for AP Courses 2022-06-09T00:00:00Z According to Ocean Research and Conservation Ireland, the bioluminescence is caused by the dinoflagellate, single-celled Mesokaryotes, commonly known as sea sparkle. Nature lovers get sparkling treat at Cork beach 2020-08-18T04:00:00Z The single-celled xenophyophores were found by researchers from the U.K.’s National Oceanography Center, the University of Hawaii and the University of Geneva in Switzerland. Strange new species discovered in Pacific Ocean 'abyss' 2020-07-01T04:00:00Z Some of these plankton are single-celled organisms called protists that, like plants, use light to transform carbon dioxide into oxygen. New genetic tools promise to unlock secrets of microscopic marine life 2020-04-06T04:00:00Z Bacteria and other single-celled microbes belong to a group called prokaryotes. Welcome to the Virosphere 2020-03-24T04:00:00Z Multicellular organisms require more time for signal transduction than single-celled organisms, as they lack compartmentalization. Biology for AP Courses 2022-06-09T00:00:00Z Around one-third of the global human population is infected with the single-celled organism Toxoplasma gondii, which in some cases causes the incurable disease toxoplasmosis. Daily briefing: How it feels to retract a paper 2020-03-02T05:00:00Z “The abundance and diversity of these giant single-celled organisms is truly amazing!” said oceanographer Craig Smith from the UH Mānoa School of Ocean and Earth Science and Technology in the statement. Strange new species discovered in Pacific Ocean 'abyss' 2020-07-01T04:00:00Z If the findings are confirmed by future work, they will help researchers to refine their theories on where and how the first single-celled life emerged on Earth, and what other worlds may be habitable. Earth may have been a 'water world' 3bn years ago, scientists find 2020-03-02T05:00:00Z Fossils of possible older single-celled green plants are still a matter of debate. Billion-year-old Chinese seaweed is oldest green plant fossil 2020-02-24T05:00:00Z However, many single-celled organisms and most multicellular organisms reproduce regularly using a method requiring two parents. Biology for AP Courses 2022-06-09T00:00:00Z Dai is coordinating a parallel effort in China, which will initially focus on single-celled organisms and viruses but is also exploring plant species. How to build a genome 2020-02-23T05:00:00Z Research into their potential impact on everything from tiny single-celled organisms to larger mammals like sea otters is just getting underway. Scientists gather to study risk from microplastic pollution 2020-02-24T05:00:00Z Also known as myxomycetes, these tiny slime molds are single-celled organisms that largely live in soil or rotting wood, feasting on bacteria. 100-million-year-old slime mold found perfectly preserved in amber 2020-01-09T05:00:00Z Stentors — or trumpet animalcules — are a group of single-celled freshwater protozoa. The best science images of the year: 2019 in pictures 2019-12-15T05:00:00Z Single-celled prokaryotes and single-celled eukaryotes are also considered organisms and are typically referred to as microorganisms. Biology for AP Courses 2022-06-09T00:00:00Z These single-celled organisms surround themselves with hard shells of calcium carbonate. Did a million years of rain jump-start dinosaur evolution? 2019-12-02T05:00:00Z For one thing, charophytes are not single-celled organisms; instead, they grow complex, branching bodies. How Did Plants Conquer Land? These Humble Algae Hold Clues 2019-11-14T05:00:00Z However, its data are helping calibrate other, indirect methods of measuring ancient CO2, like using isotopic shifts in single-celled foraminifera fossils. World’s oldest ice core could solve mystery of ‘flipped’ ice age cycles 2019-10-30T04:00:00Z There are fewer nasty algae blooms because the oysters consume the single-celled plants. The tiny but mighty Olympia oyster regains a foothold in Washington waters 2019-09-22T04:00:00Z Prokaryotic organisms are single-celled organisms that lack a cell nucleus, and their DNA therefore floats freely in the cell cytoplasm. Biology for AP Courses 2022-06-09T00:00:00Z On the face of things it's not surprising that there are single-celled organisms floating through the air. The Atmospheric Microbiome 2019-09-14T04:00:00Z And yet fly they do, to find and parasitise the eggs of other species and single-celled organisms. Wasps: If you can't love them, at least admire them 2019-09-14T04:00:00Z This is unlikely: even some single-celled organisms ‘remember’ and predict chemical conditions that occur minutes or hours later. Survival: the first 3.8 billion years 2019-08-19T04:00:00Z Eukaryotes are the group that includes humans, other animals, plants, and many single-celled organisms. Tentacled microbe could be missing link between simple cells and complex life 2019-08-08T04:00:00Z Cyanobacteria are single-celled organisms with the capacity to fix nitrogen, N2. Biology for AP Courses 2022-06-09T00:00:00Z A group in the United States will be measuring the abundance of testate amoebae — single-celled microorganisms surrounded by a shell that persists for thousands of years. Humans versus Earth: the quest to define the Anthropocene 2019-08-05T04:00:00Z A microbiologist at the University of Tennessee, Vishnivetskaya drills deep into the Siberian permafrost to map the web of single-celled organisms that flourished ice ages ago. Ancient life awakens amid thawing ice caps and permafrost 2019-07-05T04:00:00Z Working much like single-celled yeast, mycelium takes in small molecules of food—typically sugar but often from sources such as wood or plant waste—by excreting enzymes that break these materials down into digestible morsels. The Mycelium Revolution Is Upon Us 2019-07-01T04:00:00Z With it, Woese compiled evidence for a major new form of single-celled, prokaryotic life, Archaea, from which we may have descended. Was Darwin Wrong? 2019-06-15T04:00:00Z All living cells are bathed in liquid, whether they are in a single-celled organism or a multicellular one. Biology for AP Courses 2022-06-09T00:00:00Z The perpetrators are complex single-celled organisms that are fascinating to watch. Organ Stealing and Slavery Rampant Among—Plankton? [Video] 2019-05-19T04:00:00Z These unruly single-celled organisms belong to a category of life called archaea, which resemble bacteria under a microscope but are as distinct from them in some respects as humans are. Daily briefing: San Francisco bans facial-recognition technology 2019-05-14T04:00:00Z These unruly microbes belong to a category of single-celled organisms called archaea, which resemble bacteria under a microscope but are as distinct from them in some respects as humans are. The trickster microbes that are shaking up the tree of life 2019-05-13T04:00:00Z Oceans are major producers of oxygen — due largely to the actions of phytoplankton, tiny single-celled ocean plants — and they absorb half of all climate-warming carbon dioxide, according to the organization. Seychelles President Makes Underwater Plea to Protect World’s Seas 2019-04-14T04:00:00Z Despite the limitations of his now-ancient lenses, van Leeuwenhoek observed the movements of single-celled organisms, which he collectively termed “animalcules.” Biology for AP Courses 2022-06-09T00:00:00Z Some 2 billion years ago, a single-celled organism in Earth’s primeval ocean engulfed a mitochondrion and a cyanobacterium — and, now able to generate energy and photosynthesize, shunted off to change the world. The climate revolution that almost was, the science of magic, and sleep disorders examined: Books in brief 2019-04-02T04:00:00Z These amoebozoans—a phylum of single-celled eukaryotes—spend most of their lives as individual organisms, but will gather into motile multicellular formations to search for food and reproduce. Did Crawling Critters Leave These Cracks? The Answer Could Rewrite Evolutionary History 2019-02-26T05:00:00Z T. gondii is not a bacterium or a virus, but a single-celled microscopic organism distantly related to the parasite that causes malaria. Reality check: Can cat poop cause mental illness? 2019-02-15T05:00:00Z Life emerged in Earth’s seas as single-celled bacterial organisms perhaps 4 billion years ago, but the earliest life forms lacked the ability to move independently, called motility. Earth's earliest mobile organisms lived 2.1 billion years ago 2019-02-11T05:00:00Z Some single-celled organisms also release molecules to signal to each other. Biology for AP Courses 2022-06-09T00:00:00Z Foraminifera, or “forams” for short, are single-celled plankton that live in the ocean. Ancient plankton have climate data hidden in their shells 2019-01-31T05:00:00Z The genomes of some red algae, single-celled eukaryotes, suggest the answer is yes. Plants and animals sometimes take genes from bacteria, study of algae suggests 2019-01-29T05:00:00Z But their early evolution from single-celled ancestors remains shrouded in mystery. Ten big science stories of 2018 2018-12-25T05:00:00Z Significantly, that chronology decouples plate tectonics from the origin of life on Earth: evidence of the earliest single-celled organisms dates back more than 3.6 billion years. The Earth’s Shell Has Cracked, and We’re Drifting on the Pieces 2018-12-18T05:00:00Z Yeasts are single-celled eukaryotes, and therefore have a nucleus and organelles characteristic of more complex life forms. Biology for AP Courses 2022-06-09T00:00:00Z They produce frozen foods made from mycoprotein, a form of protein sourced from single-celled fungi that is easily bound together and pressed into various shapes. Is lab-grown meat the solution to meat’s ills? 2018-10-07T04:00:00Z A: It’s a single-celled fungus that lives within the Malpighian tubules, which are equivalent to kidneys, of a tropical cockroach. Fungi that live in cockroaches, oil paintings, and other bizarre places come to light in new report 2018-09-11T04:00:00Z The neodymium-carrying grit ends up incorporated into the shells of single-celled foraminifera or fish teeth, both of which accumulate over time on the sea floor. Seafloor cores suggest sticky, thick glaciers caused mysterious shift in ice age rhythms 2018-08-22T04:00:00Z They were single-celled creatures, simple in structure, with no cell nucleus. The Scientist Who Scrambled Darwin’s Tree of Life 2018-08-13T04:00:00Z DNA is the genetic material found in all living organisms, ranging from single-celled bacteria to multicellular mammals. Biology for AP Courses 2022-06-09T00:00:00Z Furthermore, the tunnels branch and connect with each other in a very unusual pattern, looking a bit like the structures made by some kinds of single-celled fungus colonies. Something Digs Intricate Tunnels in Garnets. Is It Alive? 2018-08-08T04:00:00Z Billions of years ago the single-celled common ancestor of all life on earth split into bacteria and archaea, according to evolutionary theory. Engineered Microbe Shakes Up the Tree of Life 2018-07-01T04:00:00Z Genes that date all the way back to early single-celled eukaryotic organisms were revved up, Goode's team reported last year in the Proceedings of the National Academy of Sciences. The momentous transition to multicellular life may not have been so hard after all 2018-06-28T04:00:00Z If the history of life on other planets is similar, single-celled organisms may be the first thing to search for. NASA: Mars is littered with organic molecules 2018-06-07T04:00:00Z The first life on our planet consisted of single-celled prokaryotic organisms that had limited interaction with each other. Biology for AP Courses 2022-06-09T00:00:00Z In the UK, more than 70,000 species of animals, plants, fungi and single-celled organisms have been recorded. Is this hairy crab the newest species found in the UK? 2018-05-23T04:00:00Z Researchers also have identified the single-celled species that are the closest relatives to the animal kingdom — tiny aquatic protozoans that prey on bacteria. The Very First Animal Appeared Amid an Explosion of DNA 2018-05-04T04:00:00Z These single-celled cousins of animals, endowed with a whiplike flagellum and a collar of shorter hairs, resemble the food-filtering "collar" cells that line the channels of sponges. The momentous transition to multicellular life may not have been so hard after all 2018-06-28T04:00:00Z They first appeared on Earth roughly 600 million years ago, at least two billion years after their single-celled ancestors evolved. See a Single Stem Cell Grow Into a Complete Creature 2018-05-03T04:00:00Z While some external signaling occurs between different species of single-celled organisms, the majority of signaling within bacteria and yeasts concerns only other members of the same species. Biology for AP Courses 2022-06-09T00:00:00Z When their environment turns inhospitable, the single-celled animals aggregate and reproduce by collectively releasing hardy spores into the air from an elevated stalk. The Elusive Calculus of Insect Altruism 2018-04-26T04:00:00Z Other genes arose more recently and can be found today in our close single-celled relatives. The Very First Animal Appeared Amid an Explosion of DNA 2018-05-04T04:00:00Z Likewise, their flagellum has a protein that in vertebrates helps create the body's left-right asymmetry, but what it does in the single-celled organism is unknown. The momentous transition to multicellular life may not have been so hard after all 2018-06-28T04:00:00Z These single-celled organisms can’t get enough light to thrive because they are constantly riding an up-and-down roller coaster of deep mixing that limits photosynthesis. Polar sea ice leads to more productive oceans 2018-04-06T04:00:00Z Different forms of meiosis exist in single-celled protists. Biology for AP Courses 2022-06-09T00:00:00Z Scientists suspected that RNA viruses were ancient because they are found in single-celled organisms such as amoebas2 and in invertebrates such as insects and worms3. Huge Trove of Unknown Viruses Found in Fish, Frogs and Reptiles 2018-04-05T04:00:00Z These may have played a crucial part in transforming our single-celled ancestors into creatures with complex bodies made of many kinds of cells. The Very First Animal Appeared Amid an Explosion of DNA 2018-05-04T04:00:00Z Instead, features and functions seen in single-celled organisms are rearranged in time and space in their multicellular relatives, says Corina Tarnita, a theoretical biologist at Princeton University. The momentous transition to multicellular life may not have been so hard after all 2018-06-28T04:00:00Z While bacteria are the biggest players, we also host single-celled organisms known as archaea, as well as fungi, viruses and other microbes – including viruses that attack bacteria. The human microbiome: why our microbes could be key to our health 2018-03-26T04:00:00Z A more likely explanation, though, is that the production of toluene creates energy for the single-celled microbe. In 1986, scientists found fuel-producing bacteria at the bottom of a Swiss lake. Now, they know how it works 2018-03-21T04:00:00Z His companion guide to garden science is a learned romp through plant biology; solar energy and soil nutrients; the movement of vines; and “fellow gardeners”, from single-celled protozoans to beetles. The laws of the cosmos, solar-power challenges and Darwin’s contribution to geology: Books in brief 2018-03-20T04:00:00Z There is both geologic evidence our earliest microscopic ancestors did not freeze to death and genetic indications the lineages of a range of single-celled organisms extend beyond snowball Earth. Like Ancient Snowball Earth, Frozen Planets May Still Be Habitable 2018-03-13T04:00:00Z In 2014, Ratcliff and his colleagues applied the same kind of selection for larger cells to Chlamydomonas, the single-celled alga, and again saw colonies quickly emerge. The momentous transition to multicellular life may not have been so hard after all 2018-06-28T04:00:00Z The sickle cell mutation seemed to defend against malaria by starving the single-celled parasite that causes the disease. How One Child’s Sickle Cell Mutation Helped Protect the World From Malaria 2018-03-08T05:00:00Z False-colour image of fossilized diatoms, single-celled algae that may trigger underwater landslides. The slippery cause of huge underwater landslides 2018-02-18T05:00:00Z These are organisms with complex nuclei—namely plants, animals, fungi and a range of single-celled organisms called protists. Sequencing the world 2018-01-23T05:00:00Z Yeast are single-celled fungi, unlike than the filamentous forms that build mushrooms and most other large fungi. Leaf Fungus Smoothie Brings Endangered Hawaiian Flower Back From the Brink 2017-12-09T05:00:00Z The evolutionary histories of some groups of organisms record repeated transitions from single-celled to multicellular forms, suggesting the hurdles could not have been so high. The momentous transition to multicellular life may not have been so hard after all 2018-06-28T04:00:00Z This is because “apparent design” is what sets life apart from non-life – such as a single-celled organism from inert rocks. Is anybody out there? What Darwin can teach us about what aliens look like | Samuel Levin 2017-11-02T04:00:00Z We do not divide, like some single-celled organism, into further identical human beings. What makes a Man Booker novel? Six shortlisted authors share their secrets 2017-10-14T04:00:00Z I then tried to apply one of those methods to map Ψs in African trypanosomes, the single-celled parasites that cause African sleeping sickness. An Experiment That Didn't Work 2017-10-13T04:00:00Z In 2000, coccolithophores — single-celled algae that build striking shells from overlapping plates of calcium carbonate — were reported3 to form their shells more slowly when exposed to water high in dissolved CO2. Sea change : Nature : Nature Research 2017-10-10T04:00:00Z What seemed a vast leap from single-celled ancestors looks less daunting if it was partly a matter of resetting the genetic switches, enabling existing genes to be active at new times and places. The momentous transition to multicellular life may not have been so hard after all 2018-06-28T04:00:00Z A rich supply of nutrients fosters a food web that includes single-celled algae, bottom-dwelling worms and other animals. Hot Spots in a Freezing Ocean Offer Lessons in Climate Change 2017-08-31T04:00:00Z But the creatures that inhabited our planet for its first 3 billion years were tiny, simple — mostly single-celled bacteria. The first animals evolved during the absolute worst time on Earth 2017-08-17T04:00:00Z They suggest that Drosha and the family of enzymes, called RNAse III, it belongs to were the original virus fighters in a single-celled ancestor of animals and plants. A billion-year arms race against viruses shaped our evolution 2017-06-27T04:00:00Z Beer, wine and other booze is made with yeast—single-celled microorganisms from the fungus kingdom. The Beers and the Bees: Pollinators Provide a Different Kind of Brewer's Yeast 2017-06-26T04:00:00Z And clever experiments have shown that in the test tube, single-celled life can evolve the beginnings of multicellularity in just a few hundred generations—an evolutionary instant. The momentous transition to multicellular life may not have been so hard after all 2018-06-28T04:00:00Z The amber also revealed the presence of many single-celled parasites in different parts of their life cycle. Millions of years ago, this tick was probably gorging on a monkey 2017-04-07T04:00:00Z And one single-celled predator even fires a projectile with a line attached so it can tow its prize away. First Clear View of a One-Celled Harpooner in Action 2017-03-31T04:00:00Z The world’s most widespread type of human malaria is caused by Plasmodium vivax, a single-celled parasite transmitted by mosquitoes. Dramatic evolution within human genome may have been caused by malaria parasite 2017-03-23T04:00:00Z The corals themselves are tiny polyps that act like farmers, capturing colorful single-celled plants called algae that convert sunlight into food. Large Sections of Australia’s Great Reef Are Now Dead, Scientists Find 2017-03-15T04:00:00Z In Westgate Park’s lake, the only living thing is a single-celled algae. A Lake Turned Pink in Australia. It’s Not the Only One 2017-03-10T05:00:00Z When two different single-celled entities collided and merged, the more complex cells known as eukaryotes were formed. Opinion | How come we have a mind? And how can we even ask or answer this question? 2017-02-24T05:00:00Z Slime molds are protists — mostly single-celled organisms grouped into their own kingdom on the evolutionary family tree because scientists aren't sure where else to put them. Slime molds prove you don’t need a brain to learn — or teach — a new trick 2016-12-30T05:00:00Z While life is unlikely to exist on the barren, radiation-blasted surface, scientists say traces of methane in the atmosphere may indicate something is stirring underground – possibly single-celled microbes. Mars lander smashed into ground at 540km/h after misjudging its altitude 2016-11-24T05:00:00Z Playing classic video games like Pac-Man with living single-celled microbes thinner than a human hair is now possible thanks to an interactive microscope developed by bioengineers at Stanford University. New 3D printed microscope lets kids 'play' microbiology 2016-10-27T04:00:00Z It is based on a molecular system that single-celled creatures evolved to defend against invading viruses. Science lessons for the next president 2016-10-20T04:00:00Z Many single-celled microorganisms are harmful, but others regulate the immune responses of their animal hosts to guard against infections. Microbiology: Protozoan protects the gut : Nature : Nature Research 2016-10-11T04:00:00Z It is exactly what its name suggests: a weird-looking, single-celled blob of goo. Slime molds prove you don’t need a brain to learn — or teach — a new trick 2016-12-30T05:00:00Z But according to a study published Thursday in Science, single-celled basidiomycete yeasts provide even more support. Lichen is a famous biological partnership — but it might actually be a threesome 2016-07-22T04:00:00Z Forams, as they are known, are single-celled marine creatures which grow shells made of calcium carbonate. Shell shock 2016-07-14T04:00:00Z The chalk-like powder is made from the fossilized remains of the diatom, a single-celled organism. Organic farms tailor setups, employ predator species 2016-06-29T04:00:00Z Porter cites a lab experiment conducted nearly 20 years ago, in which a predator was introduced into a community of single-celled eukaryotes—a green algae species called Chlorella vulgaris. You May Owe Your Existence to Tiny Vampires 2016-06-09T04:00:00Z We share dozens of genes with our most distant relatives, single-celled bacteria and archaea. The Selfish Gene turns 40 2016-05-29T04:00:00Z Then they injected the single-celled embryos with the Cas9 enzyme and 10 guide RNAs that matched the target sequences. Genome editor CRISPR helps trace growth of embryos—and maybe cancer next 2016-05-26T04:00:00Z After first emerging from the primordial soup, life remained primitive and single-celled for billions of years, but some of those cells eventually congregated like clones in a colony. Complex life on Earth began billion years earlier than previously thought, study argues 2016-05-17T04:00:00Z The mysterious organisms from the Gaoyuzhuang rock formation appear to belong to the branch of life known as the eukaryotes, which today includes everything from single-celled amoebae to plants, fungi and animals. Life forms 'went large' a billion years ago - BBC News 2016-05-17T04:00:00Z The central characters in this story are eukaryotes—complex, single-celled organisms that were the ancestors of animal, plant, and fungal cells. You May Owe Your Existence to Tiny Vampires 2016-06-09T04:00:00Z Which is why she was so shocked to find a eukaryote that didn't have any mitochondria at all: a single-celled relative of the giardia parasite called Monocercomonoides. ‘It’s a whole new world of weird stuff': This strange cell could challenge a basic rule of biology 2016-05-12T04:00:00Z In Thompson’s analogy, the Warburg effect can be thought of as a social failure: a breakdown of the nutrient-sharing agreement that single-celled organisms signed when they joined forces to become multicellular organisms. An Old Idea, Revived: Starve Cancer to Death 2016-05-12T04:00:00Z Compared to the long, dull years of single-celled living, the resulting diversification barely took any time at all. This gene helps prevent cancer. Did it also give rise to all complex life? 2016-04-26T04:00:00Z Allis soon found his ideal subject: a bizarre single-celled microbe called Tetrahymena. The Science of Identity and Difference 2016-05-02T04:00:00Z They most likely fed in the same way that some modern-day, single-celled vampires—known as vampyrellid amoebae—consume their food. You May Owe Your Existence to Tiny Vampires 2016-06-09T04:00:00Z Experts say that it will be impossible to stop the spread of the disease, which is caused by a single-celled parasite. Dog owners warned about new tick disease - BBC News 2016-03-15T04:00:00Z These single-celled organisms live in coral tissue and provide them with up to 90% of their nutrients. Hidden viruses may threaten Australia's Great Barrier Reef - BBC News 2016-02-25T05:00:00Z For billions of years, life on Earth was incredibly simple: Various single-celled organisms floated around the Earth, procreating, eating, avoiding getting eaten. This gene helps prevent cancer. Did it also give rise to all complex life? 2016-04-26T04:00:00Z Some bigger single-celled organisms, meanwhile, are already known to use clumps of photoreceptors called "eyespots", along with other cellular components, to determine light direction. Bacteria 'see' like tiny eyeballs - BBC News 2016-02-09T05:00:00Z Back then, though, they were minor players in Earth’s ocean ecosystem, where the dominant life-forms were simple, single-celled bacteria, called prokaryotes, which lacked a distinct nucleus and other structures typical of modern cells. You May Owe Your Existence to Tiny Vampires 2016-06-09T04:00:00Z So it is the case that living things, particularly single-celled things, can survive even space travel. 'Can you grow potatoes on Mars?’: Brian Cox and Robin Ince answer your questions 2016-01-27T05:00:00Z Prehoda and UO researcher Douglas Anderson and others made a discovery that’s giving science a new avenue for exploring how all life on Earth evolved from a single-celled entity squirming in seawater. University of Oregon researcher’s work attracts debate 2016-01-23T05:00:00Z The simplest of these species are mere single-celled organisms, but larger members contain up to 50,000 cells of different types. This gene helps prevent cancer. Did it also give rise to all complex life? 2016-04-26T04:00:00Z In a single-celled pond slime, they observed how incoming rays are bent by the bug's spherical surface and focused in a spot on the far side of the cell. Bacteria 'see' like tiny eyeballs - BBC News 2016-02-09T05:00:00Z Porter cites the fossil of a single-celled organism, found in the Yukon region of Alaska and Canada, that was surrounded by armor-type scales covered in spines. You May Owe Your Existence to Tiny Vampires 2016-06-09T04:00:00Z They resurrected ancient molecules that once helped single-celled organisms thrive, then recreated the mutations that helped them build multicellular bodies. Genetic Flip Helped Organisms Go From One Cell to Many 2016-01-07T05:00:00Z In the lab, Prehoda and other paper collaborators - including some at Berkeley and Wisconsin - studied choanoflagellate, modern single-celled organisms that sometimes form colonies to pursue food. University of Oregon researcher’s work attracts debate 2016-01-23T05:00:00Z When Olson, who teaches evolutionary genomics at Kansas State University, removed the gene from a Gonium and put it in its unicellular relative, Chlamydomonas, the formerly single-celled organisms started clumping together to form colonies. This gene helps prevent cancer. Did it also give rise to all complex life? 2016-04-26T04:00:00Z You gave up wasps for a single-celled creature. The Woman Who Stared at Wasps 2015-12-01T05:00:00Z The simple, single-celled creatures have captured scientists’ interest because they are unlike any other organism known to science. Mongrel Microbe Tests Story of Complex Life 2015-11-30T05:00:00Z The transition from our single-celled ancestors to the first multicellular animals occurred about 800 million years ago, but scientists aren’t sure how it happened. Genetic Flip Helped Organisms Go From One Cell to Many 2016-01-07T05:00:00Z Or when single-celled organisms began to replicate using DNA? The Doomsday Invention 2015-11-23T05:00:00Z To add to the problem, it seems unlikely that life consisted of anything but microscopic, single-celled, organisms for at least the first billion years - leaving the barest of geochemical or fossil remains. Early Origins for Life Raises Major Planetary Puzzles 2015-10-22T04:00:00Z Quanta Magazine spoke with Strassmann about the evolution of social insects, the secret lives of queen wasps, and what she’s learned about cooperation from a single-celled creature. The Woman Who Stared at Wasps 2015-12-01T05:00:00Z Though single-celled organisms blanket the Earth and are capable of impressive biochemistry—some can eat nuclear waste, for example—their structure and shape remain simple. Mongrel Microbe Tests Story of Complex Life 2015-11-30T05:00:00Z For example, finding gases on a planet that wouldn't normally belong there may indicate the presence of single-celled organisms. Why it’s so hard for astronomers to discuss the possibility of alien life | The Verge 2015-10-16T04:00:00Z Thus, for Bostrom, the discovery of a single-celled creature inhabiting a damp stretch of Martian soil would constitute a disconcerting piece of evidence. The Doomsday Invention 2015-11-23T05:00:00Z Here’s an example that helps to illuminate the stark contrast in intelligence between a lowly single-celled organism like Escherichia coli and AI. Bill Gates and Elon Musk are wrong: Artificial intelligence is not going to take over the world 2015-10-15T04:00:00Z Anti-choice ideology is founded on the belief that a single-celled zygote possesses a supernatural appendage called a soul that makes it the moral equal of an adult human. Abortion opposition is a religious stance. Atheists must help fight for choice | Adam Lee 2015-10-05T04:00:00Z But no detectable intermediates between ancient, single-celled life and early eukaryotes exist, making it nearly impossible to reconstruct the order of evolutionary events. Mongrel Microbe Tests Story of Complex Life 2015-11-30T05:00:00Z They’re looking for microbes, the single-celled organisms so tiny that millions could fit inside the eye of a needle. How do I … prove there’s life on Mars? 2015-10-02T04:00:00Z Photosynthesis – the ability to convert energy from the sun into fuel – first appeared on Earth in single-celled organisms, which eventually evolved into algae, then mosses, then ferns. Ancient Aquatic Flora Was Among the First Flowering Plants 2015-08-18T04:00:00Z That last batch of single-celled critters is particularly hard to study. Microbes Deep under Seafloor Reflect Ancient Land Origins 2015-08-06T04:00:00Z The bacteria's natural hosts are other single-celled organisms such as amoebae. New York City Outbreak: What Is Legionnaire's Disease? 2015-08-06T04:00:00Z It has had 2 billion years to evolve—a length of time that saw the emergence of humans from single-celled organisms. Mongrel Microbe Tests Story of Complex Life 2015-11-30T05:00:00Z In fact, most scientists think they are a bacterium that a single-celled primordial ancestor of ours engulfed a billion and a half years ago. Controversial gene therapy might help women have healthy children 2015-08-03T04:00:00Z Most of Earth’s biomass still consists of individual actors — bacteria and other single-celled creatures. Cellular Cheaters Give Rise to Cancer 2015-07-27T04:00:00Z Minnesota health officials are still trying to confirm if the death of a Minnesota teen this summer was caused by the single-celled organism Naegleria fowleri. Climate Change May Be Pushing 'Brain-Eating' Amoeba to Northern Lakes 2015-07-24T04:00:00Z But finding nothing is not a failure: it will tell us whether evolvution from single-celled bacteria to the vastly complex, curious and sentient organisms that we are is common and how common it may be. $100m to find alien life? That's a start — but not nearly enough | Rebecca Oppenheimer 2015-07-22T04:00:00Z “Who among us could doubt that basic single-celled life is common in the universe?” Search for Extraterrestrial Intelligence Nets Historic Cash Infusion 2015-07-20T04:00:00Z But the single-celled parasite is also spread in undercooked, contaminated meat—especially pork, lamb, and venison. 12 Germs That Can Cause Food Poisoning 2015-07-17T04:00:00Z The synthesis is done by single-celled algae and the molecules then pass up the food chain to small, herbivorous fish and thence to large, carnivorous ones. Something fishy 2015-07-09T04:00:00Z His was the false claim several years ago that a Martian meteorite contained diatoms — single-celled plant life. Is There Life On Comet 67P? 2015-07-06T04:00:00Z And when he lost out on the grant, it confirmed to him that the scientific community was still unwilling to imagine that any part of our neural circuitry could be influenced by single-celled organisms. Can the Bacteria in Your Gut Explain Your Mood? 2015-06-23T04:00:00Z “I would bet my house that among the nearest hundred star systems, single-celled organisms can be found and are flourishing. Or at least I’d bet Yuri’s house.” Search for Extraterrestrial Intelligence Nets Historic Cash Infusion 2015-07-20T04:00:00Z This bounty of newly identified life-forms includes organisms ranging from single-celled protists to giant parasites, most previously unknown. Multitude of Microscopic Wonders Discovered in the World's Oceans [Slide Show] 2015-05-21T04:00:00Z The microbes studied range from viruses and bacteria too small to see under a microscope to the single-celled amoebas or Paramecium that children study in biology classes. Scientists Sample the Ocean and Find Tiny Additions to the Tree of Life 2015-05-21T04:00:00Z Yeasts are single-celled and bloodless, yet they carry genes that orchestrate the growth of new blood vessels in vertebrates. Yeast can live with human genes 2015-05-21T04:00:00Z Oesterhelt’s opsin was from a single-celled bacteria that lives in highly saline lakes in Egypt and Kenya, and survives its harsh environment by converting light into energy. Goodbye, fMRI 2015-05-11T04:00:00Z Eukaryotes comprise some single-celled life forms, as well as all multi-cellular organisms, such as animals, plants and fungi. Newly found microbe is close relative of complex life - BBC News 2015-05-06T04:00:00Z All so-called eukaryotes share our cellular complexity: animals, plants, fungi, even single-celled protozoans like amoebae. Under the Sea, a Missing Link in the Evolution of Complex Cells 2015-05-06T04:00:00Z Moreover, some of the earliest single-celled life-forms on Earth most likely nourished themselves by anaerobic fermentation, or glycolysis. Alcohol: An Astonishing Molecule 2015-03-27T04:00:00Z At the bottom of an aquatic ecosystem are single-celled microbes that use energy from either sunlight or chemical sources to pluck molecules of carbon dioxide out of the water in order to grow. Earthly Extremophiles Prompt Speculation about Alien Life 2015-02-03T05:00:00Z Mitochondria's ancestor was a free-living bacterium that another single-celled organism ingested. Were Cellular Powerhouses Once Parasites? 2015-01-25T05:00:00Z The sand fly and the single-celled organism it carries are common in much of South America and Africa and affect millions of people worldwide every year. Think Like a Doctor: A Hideous Sore Solved 2014-12-05T05:00:00Z At the time, all life forms on Earth were single-celled, primitive organisms, Petrus said. Comet Strike to Blame for Canada's Iconic Sudbury Basin 2014-11-19T05:00:00Z An unassuming single-celled organism called Toxoplasma gondii is one of the most successful parasites on Earth, infecting an estimated 11 percent of Americans and perhaps half of all people worldwide. Parasites Practicing Mind Control 2014-08-28T04:00:00Z Only single-celled bacteria and archaea have turned up in samples from Lake Whillans — but the particular DNA tests used so far were not designed to detect other types of organism. Lakes under the ice: Antarctica’s secret garden 2014-08-19T04:00:00Z A New York Times story from earlier this week details the two attempts to map the genome of the single-celled fungus that’s responsible for all the stouts, IPAs and other ales. What's that bug in your beer? Scientists work to identify yeast strains 2014-05-30T04:00:00Z The team engineered the bacterium Escherichia coli to express a gene from a diatom — a single-celled alga — encoding a protein that allowed the molecules to pass through the bacterium's membrane. First life with 'alien' DNA 2014-05-06T04:00:00Z But this is no less true for you than for single-celled organisms like Paramecium. Everyone Poops, Even Paramecium 2014-05-08T13:30:27Z The team engineered the bacterium Escherichia coli to express a gene from a diatom — a single-celled alga — encoding a protein that allowed the molecules to pass through the bacterium's membrane. First Life with "Alien" DNA Created in Lab 2014-05-07T19:02:00Z Among the most important were a tiny animal called a rotifer and several species of the single-celled protist Paramecium, although nearly every microbe they tested demonstrated fairly substantial spore-eating powers. Frog-Killing Fungus Meets Its Match in Hidden World of Tiny Predators 2014-04-28T21:24:46Z Most sponges live their lives as filter feeders, sitting around and waiting for bacteria or single-celled organisms to float into their vicinity. Four New Species of Deep-Sea Killer Sponge Discovered 2014-04-15T11:31:04Z On the other hand, consider that, at a few hundred micrometers long, this complex multicellular arthropod is roughly the same size as some large single-celled microbes like amoebae. New Worm-Like Mite Features Extraordinary Upholstery 2014-03-31T21:06:12Z That began to change, Dr. Lenton and his colleagues argue, when algae and other larger single-celled organisms evolved. Matter: Take a Breath and Thank a Sponge 2014-03-13T12:00:02Z In mammals, the first of these happens just hours after conception, when most methylation is stripped from sperm DNA in the single-celled embryo. Epigenetics: The sins of the father 2014-03-05T18:50:37.761Z Tests show that it attacks amoebas, which are single-celled organisms, but does not infect humans or other animals. 30,000-year-old virus comes to life 2014-03-04T01:21:47Z Stentor is a close relative of Paramecium, and at about 1 millimeter in length, this single-celled organism is barely big enough to spot with the naked eye. CreatureCast: Moving, Without Feet to Do So 2014-01-23T16:17:47Z Malaria, for example, is caused by a single-celled parasite called Plasmodium that invades red blood cells. Matter: Learning From the History of Vitamins 2013-12-12T13:00:01Z Malarial parasites, though small and single-celled, are much more complex than the bacteria and viruses that are the usual targets of vaccines. Malaria vaccines: The long war 2013-10-10T15:00:39Z A network of underwater cameras Rapid image capturing of microscopic organisms, such as single-celled protozoa, are adding to the collection of data that researchers are now using to create a picture of the sea change. Scientists Deploy Underwater Observatory to Track Warming, Acidification 2013-09-24T16:15:02.427Z Your skin is covered in life, a fine featheriness of single-celled organisms, your verdant cloak of existence, a cloak so woven into your existence that it is not clear where it ends and you begin. New Revelations about the Biodiversity of Belly Buttons 2013-09-09T22:45:11.453Z Even single-celled amoebas will move to investigate new sources of light or heat, says Sheryl Bishop, who studies human performance in extreme environments at the University of Texas Medical Branch. Eureka: Danger! This Mission to Mars Could Bore You to Death! 2013-07-16T09:00:01Z Altogether, they discovered about 50 species of single-celled plant, animal and bacterial life. Marine ecology: Welcome to the plastisphere 2013-07-18T15:04:03Z A handful of links were made also to archaea - very primitive, single-celled microbes. Antarctic lake 'might have fish' 2013-07-08T13:29:29Z Microalgae, a large and diverse group of single-celled plants, produce a variety of substances, including oils, and are thought to be responsible for most of the fossilized oil deposits in the earth. For Solazyme, a Side Trip on the Way to Clean Fuel 2013-06-22T19:42:36Z Both are single-celled, and both include many species with beautiful pearly shells that fossilize nicely, making them a favorite target of researchers studying the prehistoric oceans. Ancient DNA Found Hidden Below Sea Floor 2013-05-08T00:15:00Z As with so much in biology, Taylor has pointed out, the boundary between single-celled and multi-cellular is not so apparent as you might think. What Lives at the Bottom of the Mariana Trench? More Than You Might Think 2013-04-15T00:15:05.547Z A decade ago, the only organisms known to live in deep layers of sediment were single-celled — bacteria and archaea. Ancient fungi found in deep-sea mud 2012-12-12T18:20:57.350Z It spends much of its time as an apparently typical microscopic single-celled amoeba, oozing about in wet soil grazing on bacteria. Starving to be Social: The Odd Life of Dictyostelium Slime Molds 2012-11-26T21:15:00.210Z I think she would; toward the end of her life she was delighted to find a new species of single-celled beast in the pond where she liked to skinny dip. Giving Thanks: Scientists Seek World Record for Most Pieces of Used Toilet Paper Collected 2012-11-22T15:45:00.240Z The theory doesn’t explain why life, after remaining single-celled for more than 2 billion years, suddenly spawned multi-cellular organisms, including one exceedingly strange mammal capable of pondering its own origins. What Should Teachers Say to Religious Students Who Doubt Evolution? 2012-11-20T23:45:05.430Z Inside the sand shanty is a branched collection of tubular filaments that has many nuclei and no cell partitions, leading some to describe them as among the largest “single-celled” organisms on Earth. What Lives at the Bottom of the Mariana Trench? More Than You Might Think 2013-04-15T00:15:05.547Z In other words, the single-celled brainless amoebae did not grow living branches between pieces of food in a random manner; rather, they behaved like a team of human engineers, growing the most efficient networks possible. How Brainless Slime Molds Redefine Intelligence 2012-11-07T16:45:02.660Z Your city is not laid out as a single-celled organism, with a wealthy nucleus surrounded by an ooze of slums. Mohsin Hamid: “The Third-Born.” 2012-09-17T04:00:00Z The link between those two events, scientists suspect, may be a deadly single-celled parasite that hitchhiked to Patagonia along with the European invader. Plight of the Bumblebee 2012-09-14T23:25:00Z A few hundred miles south of Shenhua's project, another Chinese energy giant, ENN Group, is betting on a green, single-celled organism to reduce carbon emissions. China Seeks Mastery of Carbon Capture and Storage 2012-08-24T14:45:00.237Z Fossilized remains of single-celled microorganisms were found in 1958 inside a type of rock known as chert. Rover to probe whether Mars was life-friendly in the past 2012-08-04T20:19:40Z Crucially, they contained also the remnants of tiny single-celled organisms called Archaea. Palm trees 'grew on Antarctica' 2012-08-01T20:04:49Z Floating in their primordial soup, single-celled animals acted alone, competing for resources. The Evolution Of Human Systems 2012-07-31T14:02:17Z Over the next few billion years, single-celled organisms fused and became multicellular; body plans diversified and radiated, exploding into an array of invertebrates. Evolution: Out Of The Sea 2012-07-29T03:15:04.080Z For over a decade, researchers have investigated how this single-celled creature affects the way we think, finding that indeed, alters our behavior and may even play a role in cultural differences beween nations. Toxoplasma's Dark Side: The Link Between Parasite and Suicide 2012-07-04T19:15:03.197Z While tiny relative to ourselves and most familiar marine creatures, forams are extremely large for single-celled organisms, often reaching a third of a millimeter in size. Remarkable Creatures: ‘Nature’s Masons’ Do Double Duty as Earth’s Storytellers 2012-06-25T22:33:39Z For much of its history, life on Earth existed as only single-celled organisms. You Owe Your Life to Rock 2012-06-15T19:48:11Z A single-celled organism has to have all of its internal processes coordinated in order to display adaptive responses to the environment in order to survive and reproduce. Clocks, metabolism, evolution - toward an integrative chronobiology 2012-05-30T12:45:00.197Z Many other forms might be cited to illustrate reproduction in single-celled animals, whether free or in colonies, but all such cases would be practically but repetitions or modifications of those we have already examined. Being Well-Born An Introduction to Eugenics 2012-05-22T15:16:53.140Z So, of course, we are downright offended that a simple, single-celled organism can manipulate our favorite organ, influencing the way we think and act. Toxoplasma's Dark Side: The Link Between Parasite and Suicide 2012-07-04T19:15:03.197Z Most of the 6,000 species of these single-celled protists construct surprisingly complex, ornate and beautiful shells to protect their bodies. Remarkable Creatures: ‘Nature’s Masons’ Do Double Duty as Earth’s Storytellers 2012-06-25T22:33:39Z The problem is the complexity of malaria parasites — single-celled organisms belonging to the genus Plasmodium. Vaccines: The take-home lesson 2012-04-25T17:21:37.957Z This was a key period in early evolution, which saw the split of the single-celled organisms called archaea from bacteria, and the rise of photosynthesizing cyanobacteria. Ancient asteroids kept on coming 2012-04-25T17:20:28.573Z In the first place, there is the fundamental fact that single-celled organisms exhibit only doubling division, as by that the persistence of species which actually occurs alone is possible. Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 3 "Helmont, Jean" to "Hernosand" 2012-04-14T02:00:23.707Z In the guts of cats, this single-celled protozoan lives and breeds, producing egg-like cells which pass with the cats bowel movements. Toxoplasma's Dark Side: The Link Between Parasite and Suicide 2012-07-04T19:15:03.197Z Biologists set out to estimate the total biomass of phytoplankton and calculated that less than one billion tonnes of the single-celled microorganisms were alive in the ocean at any one time. Ocean Science: The power of plankton 2012-02-29T18:21:22.477Z Scientists say they suspect the Antarctic waters are supersaturated with oxygen and other gases and may be home to bacteria and single-celled microorganisms called archea. Race is on to find life under Antarctic ice sheet 2012-02-13T14:03:46Z The closest single-celled relatives of animals, called choanoflagellates, also sometimes grow as clusters of cells. Yeast Reveals How Fast a Cell Can Form a Body 2012-01-16T20:50:06Z The transition from single-celled to multicellular organisms was one of the most significant developments in the history of life on Earth. Test Tube Yeast Evolve Multicellularity 2012-01-16T20:15:00.203Z Some of these are large multicellular bacterial groups, while others are single-celled large and rod-shaped. New Magnetic Bacteria! 2011-12-23T18:45:16.900Z But none of it would be possible without the single-celled organisms called phytoplankton that float by the thousands in every drop of water in the top 100 metres of the sea. Ocean Science: The power of plankton 2012-02-29T18:21:22.477Z But a new high-tech analysis, published online Thursday in Science, suggests that the fossils might instead represent spores of a single-celled, asexual organism. 3-D Imaging of Microfossils Muddies Case for Early Animal Embryos [Video] 2011-12-23T00:15:02.737Z They decided it would be observing single-celled microbes evolving a primitive form of multicellularity. Yeast Reveals How Fast a Cell Can Form a Body 2012-01-16T20:50:06Z All plants and living creatures evolve their organisation from a single microscopic cell, precisely as Life itself evolved primarily, and has developed out of the single-celled, microscopic amœba. Feminism and Sex-Extinction 2011-11-11T03:00:29.100Z Researchers returning from an expedition to the Mariana Trench in the western Pacific, the deepest part of the oceans, say it is home to single-celled organisms more than four inches long. Observatory: For a Giant Single-Celled Organism, Home Is the Deepest Address on the Planet 2011-10-31T21:30:19Z Phytoplankton comprise two main groups: photosynthetic cyanobacteria and the single-celled algae that drift in the sunlit top layers of oceans. Ocean Science: The power of plankton 2012-02-29T18:21:22.477Z The team expects to find evidence of viruses, bacteria, single-celled microorganisms called archea and complex cell organisms called eukaryotes. Buried Antarctic Lake Could Hold Vital Climate Clues 2011-10-11T02:45:07.183Z Our ancestors were single-celled microbes for about three billion years before they evolved bodies. Yeast Reveals How Fast a Cell Can Form a Body 2012-01-16T20:50:06Z Instead, two cells merge, combining their DNA into a new single-celled organism that just keeps growing — extending tentacles that can extend as far as several yards. Slime Molds: Ancient, Alien and Sophisticated 2011-10-03T20:59:02Z This is just what happens in the lichens; and botanists have discovered that these curious growths are really the result of a partnership between single-celled green plants and single-celled fungi. Through Magic Glasses and Other Lectures A Sequel to The Fairyland of Science 2011-10-03T02:00:33.003Z First comes the fundamental circumstance that single-celled organisms exhibit only doubling division, as by that alone the permanence of species, which experience shows us to exist, is possible. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z The parasite, a common single-celled organism called Toxoplasma gondii, infects all sorts of animals, including rats, in which it causes a strange transformation. Parasite Hijacks Rats? Arousal Circuitry, Study Finds 2011-08-17T21:07:21Z The antibiotics produced on our skin are a microscopic stick exercised in order to keep the single-celled horses in line. Biologist Finds Himself Spending Way too Much Time Thinking about a Discovery he Might Have Made on Jon Stewart's Body 2011-08-15T12:45:10.060Z While they spend part of their life as ordinary single-celled creatures, they sometimes grow into truly alien forms. Slime Molds: Ancient, Alien and Sophisticated 2011-10-03T20:59:02Z Archaeol is a well-studied molecule found in the cell membranes of primitive single-celled organisms that live in the guts of ruminants such as cows, aiding their digestion. Cow methane proof 'is in the pat' 2011-06-08T10:55:35Z Clearly enough, the egg, in its single-celled condition, changes its quality in a marked degree when it becomes multicellular, even although the change has occurred by doubling division. The Biological Problem of To-day Preformation Or Epigenesis? The Basis of a Theory of Organic Development 2011-08-29T02:01:04.170Z They considered 106 proteins shared among 36 modern-day organisms of widely varying complexity, from single-celled protozoa up to humans. Tiny flaws 'sparked complex life' 2011-05-19T08:13:56Z Dr. Crenshaw earned his Ph.D. figuring out how single-celled creatures swim. Turning to Biomechanics to Build a Kinder, Gentler Rib Spreader 2011-05-16T22:14:23Z “I wasn’t even a single-celled organism at that point,” said Mr. Giancola, a Brooklyn artist who was not born until 1967. City Room: Stamps From Space, With Brooklyn Ties 2011-05-04T19:59:18Z How, then, do these single-celled intestinal denizens exert their influence on a complex multicellular organ such as the brain? The Neuroscience of the Gut 2011-04-19T15:15:00.413Z From single-celled ancestors, they evolved into a riot of complexity and diversity. From Single Cells, a Vast Kingdom Arose 2011-03-14T22:00:25Z Malaria is caused by several species of single-celled organisms known as protozoans. Lab-Engineered Organism Fights Malaria 2011-02-28T15:43:00Z On Earth, some two-thirds of all bacteria, along with another group of single-celled organisms known as archaea, are thought to lurk underground. Buried Microbes Coax Energy From Rock 2011-02-09T15:25:00Z Finally, the group checked their computational results against the genome of an actual single-celled organism isolated from the cow's rumen. Something to Chew on: Researchers Look Inside Cow Stomachs for a Leg up on Next-Gen Biofuels 2011-01-27T19:45:00.267Z Slime mold might not seem like a terribly advanced life form, but these single-celled social amoebae are adept at joining forces to increase their chances of passing on their genes. Germinators: Amoeba Farmers and Other Organisms That Grow Their Own Food [Slide Show] 2011-01-20T21:15:03.270Z Changing from a single-celled organism to a trillion-cell collective demands a huge genetic overhaul. From Single Cells, a Vast Kingdom Arose 2011-03-14T22:00:25Z A new study finds that the single-celled organism is a farmer of sorts. The World's Smallest Farmers 2011-01-19T18:27:00Z Also, bacteriophages, a special form of virus that subsists on single-celled organisms, thrive. The top 10 life-forms living on Lady Gaga (and you) 2011-01-04T21:15:16.257Z Correction: December 20, 2010 An article on Tuesday about single-celled organisms called choanoflagellates misstated the surname of a researcher at the University of California, Berkeley. Remarkable Creatures: In a Single-Cell Predator, Clues to the Animal Kingdom?s Birth 2010-12-20T03:42:08Z Many different kinds of larger life forms, including fungi, animals and plants, subsequently evolved independently from separate single-celled ancestors. Remarkable Creatures: In a Single-Cell Predator, Clues to the Animal Kingdom?s Birth 2010-12-14T16:46:36Z Plants and fungi evolved from single-celled ancestors, as well as dozens of other less familiar lineages, from brown algae seaweed to slime molds. From Single Cells, a Vast Kingdom Arose 2011-03-14T22:00:25Z It was night, and while there were true stars above us, the ones in my grasp were really dinoflagellates - single-celled organisms that emit light, or bioluminesce, whenever they're disturbed. Many organisms rely on bioluminescence to breed, feed and evade predators 2010-10-11T21:00:00Z To see what those shifts do to metabolism, the researchers tweaked a basic physiological equation to create four versions, one each to represent a generalized single-celled organism, an invertebrate, an amphibian or a reptile. A Little Climate Change Goes a Long Way in the Tropics 2010-10-07T16:14:00Z A single-celled organism also known as rock snot, didymo has done as much as any invasive species to prompt calls for a ban on felt soles. Fly Fishers Serving as Transports for Noxious Little Invaders 2010-08-16T01:57:00Z But recent studies suggest that these obscure organisms are among the closest living single-celled relatives of animals. Remarkable Creatures: In a Single-Cell Predator, Clues to the Animal Kingdom?s Birth 2010-12-14T16:46:36Z Studies by other scientists point to the same conclusion: a lot of the genes once thought to be unique to the animal kingdom were present in the single-celled ancestors of animals. From Single Cells, a Vast Kingdom Arose 2011-03-14T22:00:25Z The single-celled photosynthetic organisms produce much of the oxygen on earth and are the base of the marine food chain. Exploring Algae as Fuel 2010-07-26T04:30:00Z For the “primary producers” in the ocean—the mostly single-celled creatures that photosynthesise—this will probably be the case. Ocean acidification: The other carbon-dioxide problem 2010-07-01T11:08:00Z The organisms – basically single-celled plants – live in a panel that vaguely resembles a solar photovoltaic one. Banking on Fuel-Sweating Flora 2010-05-04T20:03:00Z Scientists are also discovering that our nervous system shares an even deeper homology with single-celled organisms. The Search for Genes Leads to Unexpected Places 2010-04-26T20:22:00Z It offered scientists an opportunity to compare the DNA of sponges to that of other animals as well as to Capsaspora and other single-celled relatives. From Single Cells, a Vast Kingdom Arose 2011-03-14T22:00:25Z Most ciliates are single-celled organisms covered with tiny hair-like structures known as cilia — which is Latin for eyelashes. 2010-02-10T17:03:00Z A slime mold is what scientists refer to as a single-celled amoeboid organism. 2010-01-26T06:45:00Z With the multicellular organisms much variation in form is possible, but with these single-celled organisms the possible variation in form is greatly limited. Outlines of dairy bacteriology A concise manual for the use of students in dairying Not even a single-celled life form in the ocean. An Empty Bottle Obviously they were simple beings, uni-cellular, some sort of primitive single-celled things. The Eyes Have It It was an amoeba, another of those single-celled, protoplasmic mounds of flesh. Astounding Stories, April, 1931 From its appearance and actions, I think it must be a huge single-celled animal of the type of the earthly amoeba. Astounding Stories of Super-Science July 1930 It is a single cell, recalling the earliest single-celled ancestor of all animals. The World's Greatest Books — Volume 15 — Science He poured until the bottle was empty and all the single-celled bacteria from the ship's tank mingled with the warm, lifeless waters. An Empty Bottle Since the development of every organism begins with it, the primitive condition is in no way recapitulated from the time when perhaps only single-celled amoebas existed on our planet. At the Deathbed of Darwinism A Series of Papers Associated with these, but formed earlier, and germinating immediately, are often to be found large single-celled spores, borne on long stalks. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses Now the single-celled Infusorian is in many respects comparable with the single-celled germ of the higher animals. Applied Eugenics In the debates of 1830 I remained the thrall of that dogma in regard to the origin of single-celled organisms whether in or out of body. The World's Greatest Books — Volume 15 — Science Thus, in biology, we used to have interminable discussion as to whether certain single-celled organisms were animals or vegetables, until Haeckel introduced the new apperceptive name of Protista, which ended the disputes. Talks To Teachers On Psychology; And To Students On Some Of Life's Ideals The distance from the single-celled amœba to hydra is vast, probably really greater than that between any other successive terms of our series. The Whence and the Whither of Man A Brief History of His Origin and Development through Conformity to Environment; Being the Morse Lectures of 1895 Passing by the simple vital processes of the monera, or single-celled "things," we notice the higher forms of cell life, with growing sensibility or sensation. A Series of Lessons in Raja Yoga In the single-celled creature, the one cell performs all of the functions, of course. A Series of Lessons in Gnani Yoga Now, that individual is the consequence of his father and mother and his environment, and his father and mother of theirs, and so backwards to the single-celled protoplasm. The Human Machine The last-named science teaches us also that a primitive form of soul-activity is already present even in the lowest animals, the single-celled primitive animals, Infusoria and Rhizopoda. Monism as Connecting Religion and Science A Man of Science A single-celled, protoplasmic organism, which is constantly changing its form by protrusions and withdrawals of its substance. A Practical Physiology For a long time our planet was inhabited solely by such Protista or single-celled primitive creatures. Monism as Connecting Religion and Science A Man of Science Each cell manifests the functions of life, whether it be a single-celled creature, or a cell which with billions of others, goes to make up a higher form. A Series of Lessons in Gnani Yoga |
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