| 单词 | asexually |
| 例句 | “Yes. Removing only the leaves you need, leaving the rest to continue growing. And the yeast reproduces on its own asexually using budding.” The Last Cuentista 2021-10-12T00:00:00Z Is it possible, hypothetically, for human females to reproduce asexually? The future of sex 2012-09-19T19:20:00Z The Vuvv, who reproduce asexually, have a fixation on human dating culture and romance. ‘Landscape With Invisible Hand’ Review: Hit Subscribe, Alien Overlords 2023-08-17T04:00:00Z The researchers altered the equivalent genes in the fruit fly Drosophila melanogaster, which usually cannot reproduce asexually. ‘Virgin Birth’ Engineered into Female Animals for First Time 2023-08-01T04:00:00Z It also multiplies at an alarming rate; the female can reproduce asexually, creating offspring on her own. How Bad Will the Ticks Be This Summer? 2023-06-29T04:00:00Z Female animals can also reproduce asexually to take advantage of a favourable change in conditions. Crocodile’s ‘Virgin Birth’ Is a First for Science’s History Books 2023-06-09T04:00:00Z And redwoods, like many plants, have male and female parts, but they often reproduce asexually by cloning themselves and growing new trees as “stump sprouts.” 'Queer ecology' gifted him new perspective. Take his hikes to find it too 2023-06-01T04:00:00Z Bacteria reproduce asexually to make clones of themselves—they don’t interbreed. Fundamentals of Biology 2015-01-01T00:00:00Z Echinoderms may also reproduce asexually through regeneration from body parts. Concepts of Biology 2013-04-25T00:00:00Z Vandegrift said, noting that it can reproduce one of two ways: using spores and sometimes asexually. The 10 weirdest mushrooms in North America 2023-04-30T04:00:00Z It invaded many European waterways by reproducing asexually. Crocodile’s ‘Virgin Birth’ Is a First for Science’s History Books 2023-06-09T04:00:00Z For plants that reproduce asexually, he says, a large genome can add opportunities for beneficial mutations to occur while buffering from undesirable ones. Strange Tree Fern Has a Surprisingly Enormous Genome 2022-09-23T04:00:00Z Liverwort plants can also reproduce asexually, by the breaking of branches or the spreading of leaf fragments called gemmae. Fundamentals of Biology 2015-01-01T00:00:00Z In an unstable or unpredictable environment, species that reproduce asexually may be at a disadvantage because all the offspring are genetically identical and may not be adapted to different conditions. Concepts of Biology 2013-04-25T00:00:00Z Then in 1966, a paper was published in Science claiming that ferns, many of which reproduce asexually, gained an evolutionary advantage from genome duplication. Cracking the Case of the Giant Fern Genome 2022-09-12T04:00:00Z Some animals are able to reproduce asexually by a process called parthenogenesis. Biology for AP Courses 2022-06-09T00:00:00Z Fungi can reproduce asexually by releasing spores or simply breaking off a hypha or budding off a cell. Miller & Levine Biology 2018-01-01T00:00:00Z Echinoderms may also reproduce asexually, as well as regenerate body parts lost in trauma. Fundamentals of Biology 2015-01-01T00:00:00Z There are several ways that animals reproduce asexually, the details of which vary among individual species. Concepts of Biology 2013-04-25T00:00:00Z A variety of plants and some animals can reproduce asexually. World’s largest plant is a vast seagrass meadow in Australia 2022-06-01T04:00:00Z There are a number of ways that animals reproduce asexually. Biology for AP Courses 2022-06-09T00:00:00Z Many flowering plants can also reproduce asexually by a process known as vegetative reproduction. Miller & Levine Biology 2018-01-01T00:00:00Z In some species, the larvae divide asexually and multiply before they reach sexual maturity. Fundamentals of Biology 2015-01-01T00:00:00Z At least one invertebrate, the marbled crayfish, evolved the ability to reproduce asexually in captivity and is now spreading rapidly across Europe, Africa and Asia, carrying with it disease that harms native species. 15 Conservation Issues to Watch in 2022 2021-12-30T05:00:00Z This discovery suggests that the largest North American land birds can sometimes reproduce asexually, a strategy that could help the critically endangered species survive. In Case You Missed It 2021-12-18T05:00:00Z Living in human liver and red blood cells, the organism reproduces asexually in the gut of blood-feeding mosquitoes to complete its life cycle. Biology for AP Courses 2022-06-09T00:00:00Z Many invertebrates and some vertebrates can also reproduce asexually. Miller & Levine Biology 2018-01-01T00:00:00Z Once thawed, it was able to reproduce asexually, after spending millennia in a state of frozen animation known as crytobiosis. Bdelloid rotifer survives 24,000 years frozen in Siberia 2021-06-07T04:00:00Z Sometimes, they reproduce asexually: a tuber-like bulge at the base of their stem, called a corm, grows large and eventually splits, producing multiple genetically identical plants. Breathing life into the corpse flower 2021-01-21T05:00:00Z Mark Wanner, manager of the herpetarium, said it is unusual but not rare for ball pythons to reproduce asexually. Female python, 62, at St. Louis Zoo lays 7 eggs, seemingly without male 2020-09-11T04:00:00Z However, after several years, as the queen begins to age, she produces some offspring asexually in a process called parthenogenesis. Biology for AP Courses 2022-06-09T00:00:00Z Paramecia and most ciliates reproduce asexually by mitotic cell division. Miller & Levine Biology 2018-01-01T00:00:00Z While some reptiles are known to reproduce asexually, keepers are also surprised by the mother's age. Python lays eggs 'without male help' 2020-09-11T04:00:00Z The insects - found off the coast of Cornwall - reproduce asexually without the need of male sperm. The stick insect that lost its sex drive 2019-08-20T04:00:00Z Female aphids born in summer reproduce asexually, by cloning themselves, whereas those born in autumn lay eggs. CRISPR gene-editing creates wave of exotic model organisms 2019-04-22T04:00:00Z Bacteria and Archaea reproduce asexually, and genetic material is in a closed loop. Biology for AP Courses 2022-06-09T00:00:00Z Danchin studies a very successful plant parasite, a nematode that reproduces asexually and also has three sets of chromosomes. An aquarium accident may have given this crayfish the DNA to take over the world 2018-02-05T05:00:00Z These polyps reproduce asexually, forming a colony of clones. Jellyfish Have Superpowers--and Other Reasons They Don't Deserve Their Bad Reputation 2017-12-12T05:00:00Z Unlike most ants, the raider ants reproduce asexually, through parthenogenesis. Scientists create the first mutant ants 2017-08-10T04:00:00Z Stick insects, aphids, and some ants and wasps also reproduce asexually. 1 beetle may have brought lethal tree disease now across SE 2017-07-08T04:00:00Z The change will be passed on asexually simply if the reproducing cell possesses the changed trait. Biology for AP Courses 2022-06-09T00:00:00Z It sounds like a bad monster movie plot: A 10-legged mutant creature that reproduces asexually, escapes from confinement in Germany, and quietly begins a global invasion. An aquarium accident may have given this crayfish the DNA to take over the world 2018-02-05T05:00:00Z They multiply asexually, and boom — what a pretty picture. The Black Sea Turned Turquoise, Thanks to a Phytoplankton Bloom 2017-06-16T04:00:00Z A creature which reproduces asexually passes on all of its genes to each of its progeny. Plucking rubies from the rubbish 2016-02-24T05:00:00Z Another factor that allows for the persistence of foreign DNA is that some tardigrades reproduce asexually, like the ones in the study. What the World's Toughest Animal Is Really Made Of 2015-11-28T05:00:00Z Indeed, some organisms that lead a solitary lifestyle have retained the ability to reproduce asexually. Biology for AP Courses 2022-06-09T00:00:00Z The marbled crayfish is the only crustacean that reproduces asexually, with the all-female species making clones of itself from eggs unfertilized by sperm. An aquarium accident may have given this crayfish the DNA to take over the world 2018-02-05T05:00:00Z They can make millions and millions of copies of themselves and clone asexually. Are jellyfish going to take over the oceans? | Karl Mathiesen 2015-08-21T04:00:00Z Within a new host the parasite begins dividing asexually and spreading throughout the host's body. Common Parasite Could Manipulate Our Behavior 2015-03-26T04:00:00Z In animals, the resulting diploid cell — a zygote — goes on to divide asexually many times, forming the multicellular organism. Mosses Make Two Different Plants From the Same Genome, and a Single Gene Can Make the Difference 2013-05-12T19:45:00.233Z Despite decades of study, researchers still believed that the fungi only reproduced asexually. The Joy of Fungal Sex: Penicillin Mold Can Reproduce Sexually, Which Could Lead to Better Antibiotics 2013-02-08T12:15:00.507Z But hydras only achieve an indefinite lifespan if they reproduce asexually, budding off daughters from the mother's body wall. Comparative biology: Looking for a master switch 2012-12-06T12:21:16.843Z But here it occurs across a generation; all females reproduce asexually via a process called obligate parthenogenesis. Virgin snake births found in wild 2012-09-11T23:45:09Z Nor is it known what spurred the female snakes to reproduce asexually. Virgin Births Seen in Wild Vipers 2012-09-12T19:45:09.353Z What if, instead of dividing asexually through mitosis as an animal zygote does, the resulting zygote immediately underwent meiosis? Mosses Make Two Different Plants From the Same Genome, and a Single Gene Can Make the Difference 2013-05-12T19:45:00.233Z But here it occurs across a generation; all female reproduce asexually via a process called obligate parthenogenesis. Virgin snake births found in wild 2012-09-11T23:45:09Z The development of eggs asexually, that is, without uniting first with a male cognate, is termed parthenogenesis. Being Well-Born An Introduction to Eugenics 2012-05-22T15:16:53.140Z Spores are cells used for propagation that are formed asexually, by regular cell division, AKA mitosis. Ferns, Secret Ninja Ferns, and their Alluring Asexual Bits 2012-05-07T11:15:00.827Z Folks, we don’t reproduce asexually, like snails and worms! Men Have Sex Too 2012-03-05T11:45:59Z With males a no-show, queens would have to reproduce asexually, somehow turning eggs into larvae without fertilization from sperm. 'Asexual' Ants May Be Having Sex After All 2011-07-18T20:00:00Z Worms forced to reproduce asexually succumbed to a nasty bacterial infection and died. Parasites make sex worthwhile 2011-07-08T15:05:38Z Statoblasts, hibernacula, and gemmules are alike produced asexually, but they resemble the eggs of Hydra in being provided with a hard, resistant shell, and in having the capacity to lie dormant until favourable conditions return. Freshwater Sponges, Hydroids & Polyzoa 2011-06-25T02:00:17.833Z Each aphid community is founded by a single, asexually reproductive female at the end of winter. The role of grandmothers: Battling grannies 2010-07-15T10:43:00Z Until recently it was thought that stripe rust reproduces asexually. Wheat rust and world farming: Rust in the bread basket 2010-07-01T11:08:00Z No mammal reproduces asexually — by budding off a small piece of itself, say, or by splitting down the middle and growing a new individual from each half. 2010-02-10T17:03:00Z This genus also propagates asexually, like Ctenodrilus, which may possibly belong to the same family. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" At present the theory of the pure line is strictly applicable only to organisms reproducing asexually or to self-fertilizing forms where the group observed is actually composed of the progeny of a single organism. The Social Direction of Evolution An Outline of the Science of Eugenics In the so-called process of alternate generation many individuals are generated asexually during very early or later stages of development. The Variation of Animals and Plants Under Domestication, Volume II (of 2) Plants that are reproduced asexually often appear to deteriorate after a few generations unless a sexual generation is introduced. Mendelism Third Edition When a ciliate reproduces, it does so asexually, typically by splitting in half and growing a complete new individual from each piece. 2010-02-10T17:03:00Z Reproduction.—As is the case with the Oligochaeta, the Polychaeta furnish examples of species which multiply asexually by budding. Encyclopaedia Britannica, 11th Edition, Volume 5, Slice 7 "Cerargyrite" to "Charing Cross" Table Number 2 shows varieties that are being propagated asexually, but have not yet been given variety names. Northern Nut Growers Association Report of the Proceedings at the 44th Annual Meeting Rochester, N.Y. August 31 and September 1, 1953 The Deming Purple walnut tree, when asexually propagated, reproduces the purple wood, so I reasoned the Lamb variety would reproduce figured wood. Northern Nut Growers Association Incorporated 39th Annual Report at Norris, Tenn. September 13-15 1948 In the nut contests the word "propagated" is restricted to those nuts which any nurseryman lists in his catalog and of which he is prepared to furnish grafted, budded or otherwise asexually multiplied trees. Northern Nut Growers Association Report of the Proceedings at the Eleventh Annual Meeting Washington, D. C. October 7 and 8, 1920 The term "asexually" as used in the act, is generally understood by horticulturists to mean any method of producing a plant except from seed. Northern Nut Growers Report of the Proceedings at the Twenty-First Annual Meeting Cedar Rapids, Iowa, September 17, 18, and 19, 1930 I received one of those surprises which sometimes occur when a tree is asexually propagated when I grafted scions from this butternut on black walnut stock. Growing Nuts in the North A Personal Story of the Author's Experience of 33 Years with Nut Culture in Minnesota and Wisconsin There still remains to be considered the plants that are propagated asexually, like potatoes and all our cultivated fruits. Trees, Fruits and Flowers of Minnesota, 1916 Embracing the Transactions of the Minnesota State Horticultural Society,Volume 44, from December 1, 1915, to December 1, 1916, Including the Twelve Numbers of "The Minnesota Horticulturist" for 1916 Under such changed conditions a complex organism, if only asexually propagated, would become extinct. Darwinism (1889) He viewed everybody asexually, as a generalized human being. Under the Skylights Whether any species has been reproduced asexually from a very remote period cannot, of course, be ascertained. Effects of Cross and Self Fertilisation in the Vegetable Kingdom There are also many other methods by which organisms can be propagated asexually. Effects of Cross and Self Fertilisation in the Vegetable Kingdom So far it would seem that about the only crop which is propagated asexually that is likely to deteriorate, or is capable of improvement, is one that is directly modified by soil and climate. Trees, Fruits and Flowers of Minnesota, 1916 Embracing the Transactions of the Minnesota State Horticultural Society,Volume 44, from December 1, 1915, to December 1, 1916, Including the Twelve Numbers of "The Minnesota Horticulturist" for 1916 |
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