| 单词 | motile |
| 例句 | Language, once it comes alive, behaves like an active, motile organism. The Lives of a Cell 1974-01-01T00:00:00Z But there is something else about words that gives them the look and feel of living motile beings with minds of their own. The Lives of a Cell 1974-01-01T00:00:00Z He is sure one motile guy, Got to reach that ovum with an X or a Y. Style Invitational Week 1239: MASH 3 — combine two movie titles 2017-08-03T04:00:00Z Medusa forms are motile, with the mouth and tentacles hanging down from an umbrella-shaped bell. Fundamentals of Biology 2015-01-01T00:00:00Z Self- fertilization is more common in animals that have limited mobility or are not motile, such as barnacles and clams. Concepts of Biology 2013-04-25T00:00:00Z Fibroblasts are motile, able to carry out mitosis, and can synthesize whichever connective tissue is needed. Biology for AP Courses 2022-06-09T00:00:00Z The bank guarantees a vial will have 10 million or 15 million total motile sperm. The Sperm Kings Have a Problem: Too Much Demand 2021-01-08T05:00:00Z Yilingia, Dr. Xiao noted, “is neither the oldest segmented animal nor the oldest motile animal, but it is thus far the oldest known segmented and motile animal capable of producing long and continuous trails.” Behold Mortichnia, the Death Trail of an Ancient Worm 2019-09-04T04:00:00Z Typically, the small, motile male sperm fertilizes the much larger, sessile female egg. Fundamentals of Biology 2015-01-01T00:00:00Z Medusae are motile, with the mouth and tentacles hanging from the bell-shaped body. Concepts of Biology 2013-04-25T00:00:00Z Self fertilization is common in animals that have limited mobility or are not motile, such as barnacles and clams. Biology for AP Courses 2022-06-09T00:00:00Z 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 The reconstitution of each element of these motile groups, no matter how detailed, will never explain why groups move in the direction of the gradient but individual elements do not. Cell parts to complex processes, from the bottom up 2018-11-05T05:00:00Z Nobody expects to see motile sperm in a plant lecture. Spore heroes: unlocking the life-cycle secrets of the earliest land plants 2018-05-24T04:00:00Z The majority of protists are motile, but different types of protists have evolved varied modes of movement. Concepts of Biology 2013-04-25T00:00:00Z Animals that are motile carry out this process. Biology for AP Courses 2022-06-09T00:00:00Z False color scanning electron micrograph of Vibrio vulnificus, a species of Gram-negative, motile, curved, rod-shaped, pathogenic bacteria of the genus Vibrio that lives in marine environments such as estuaries, brackish ponds, or coastal areas. Living in a horror film: How Trump could make a deadly flesh-eating bacteria spread, again 2017-01-28T05:00:00Z But you always find that somewhere in their life cycle, there is some motile phase. The benefits of being able to move are just too great. Why You Move the Way You Do Like cycads — their gymnosperm relatives — and ferns, the ginkgo produces motile sperm. The Female Ginkgo Tree’s Acrid Smell of Success 2015-10-29T04:00:00Z Most single-celled protists are motile, but these organisms use diverse structures for transportation. Concepts of Biology 2013-04-25T00:00:00Z As they beat back and forth outside the cell, coordinated brushes of so-called motile cilia regulate fluid flow nearby. Why Scientists Are Blaming Cilia for Human Disease 2014-12-10T05:00:00Z Dr. Fisher’s lab discovered that as trophoblasts invade, they alter certain proteins on their surfaces, called adhesion molecules, to become more motile. The Push to Understand the Placenta 2014-07-14T04:00:00Z The large and motile ones were considered to be animals and the ones that appeared not to move, including the bacteria, were considered to be plants. Archaebacteria: The Third Domain of Life Missed by Biologists for Decades 2013-01-01T00:45:00.170Z We observed that single extravasated tumor cells proliferated to form “pre-micrometastases,” in which cells lacked contact with neighboring tumor cells and were active and motile within the confined region of the growing clone. [Research Articles] Intravital Microscopy Through an Abdominal Imaging Window Reveals a Pre-Micrometastasis Stage During Liver Metastasis 2012-11-05T19:57:50.360Z Scyphozoans include all the jellies and are motile and exclusively marine with about 200 described species. Concepts of Biology 2013-04-25T00:00:00Z The motile forms are produced in much greater numbers than the eggs, plainly because they have to seek the egg and many will doubtless perish before this can be accomplished. Being Well-Born An Introduction to Eugenics 2012-05-22T15:16:53.140Z The pandas' sperm was also much more plentiful, motile and had fewer defects during the peak breeding season than at other times of the year. In the Heat for a Moment: The Male Giant Panda's Sex Drive Fluctuates to Match the Female's Short-Lived Libido 2012-04-04T20:15:00.213Z These represent modified pseudopodia, and in the formation of the motile gametes of some of the lower forms, e.g. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 8 "Cube" to "Daguerre, Louis" 2012-01-31T03:00:17.257Z And it’s very difficult to capture specimens of motile fishes from submersibles. Green Blog: A Visual Feast in an Undersea Twilight Zone 2011-12-26T15:12:22Z Typically, the small, motile male sperm travels to the much larger, sessile female egg. Concepts of Biology 2013-04-25T00:00:00Z One of the most important discoveries made during the latter part of the 19th century was that by Ikeno, a Japanese botanist, who first demonstrated the existence of motile male cells in the genus Cycas. Encyclopaedia Britannica, 11th Edition, Volume 12, Slice 7 "Gyantse" to "Hallel" 2011-12-26T03:00:11.613Z “Even devils with large tumors and metastases continued to produce motile sperm of similar quality to disease-free animals and to those with early-stage tumors.” Sperm Bank and Reproductive Research Could Help Save Tasmanian Devils from Extinction 2011-12-15T00:45:09.280Z When the rate of sperm motility following freezing and thawing was considered along with the percent of motile sperm, a slight advantage was found with 16 percent yolk and a citrate concentration of 1.55 percent. Preservation of Bull Semen at Sub-Zero Temperatures 2011-08-13T02:00:22.680Z It is not true: I’ve learned the human body, know the male, And know his life is motile, does not rest, And wait, as woman’s does, cannot do so. Domesday Book 2011-04-30T02:00:13.397Z It is not motile, and does not form spores. Contagious Abortion of Cows 2011-02-14T03:00:33.157Z Sperm cells, the small, often motile, reproductive cell, which fuses with the egg cell. A Guide for the Study of Animals 2011-01-18T03:00:14.913Z They found that the 155 obese men tended to have fewer motile sperm and fewer rapidly moving sperm than their normal-weight and overweight counterparts. Obesity tied to poorer sperm quality 2010-02-17T21:20:00Z The percentage of motile sperm found after freezing and thawing followed the same trend at an average level 10 to 15 percent lower than the prefreezing level. Preservation of Bull Semen at Sub-Zero Temperatures 2011-08-13T02:00:22.680Z The minute motile filaments of the antheridia fertilize the large spores after injection into the water: and then the latter promptly acquire a cell-wall and germinate. The Elements of Botany For Beginners and For Schools When a portion of an antiserum is added to an emulsion of the corresponding organism, the organisms, if they are motile, cease to move, and in any case become gathered together into clumps. Encyclopaedia Britannica, 11th Edition, Volume 4, Slice 1 "Bisharin" to "Bohea" They learned to squeak and squawk and form the sounds into a pattern with their motile tongues. Brown John's Body Essaulow found in keffir grains six different organisms—yeast cells, cocci, short thick bacilli, bent bacilli, long threads, and motile bacteria. The Bacillus of Long Life a manual of the preparation and souring of milk for dietary purposes, together with and historical account of the use of fermente The percentage of motile sperm decreased slightly at the higher levels of glycerol. Preservation of Bull Semen at Sub-Zero Temperatures 2011-08-13T02:00:22.680Z The essential cause of malignant edema is a long, slender, motile, spore-bearing bacillus, resembling the bacillus of blackleg, and which can develop only in the absence of the atmosphere. Special Report on Diseases of Cattle Note the time: Examine the control to determine that the bacilli are motile and uniformly scattered over the field—not collected into masses. The Elements of Bacteriological Technique A Laboratory Guide for Medical, Dental, and Technical Students. Second Edition Rewritten and Enlarged. By this is meant the aggregation into clumps of the bacteria uniformly distributed in an indifferent fluid; if the bacterium is motile its movement is arrested during the process. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" Dr. Bose invented 'special apparatus of extreme delicacy,' which detected infinitesimal tremors, and showed that ordinary plants, usually regarded as insensitive, gave motile responses, which had hitherto passed unnoticed. Sir Jagadis Chunder Bose His Life and Speeches From the data in Table 3, it is obvious that motile sperm were present after freezing and thawing epididymal samples. Preservation of Bull Semen at Sub-Zero Temperatures 2011-08-13T02:00:22.680Z They are characterized by being actively motile, and are either strictly unicellular, or the cells are united by a gelatinous envelope into a colony of definite form. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses The motile organs are cirri and cilia, all inserted in the constriction. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 Independent movement is effected by special motile organs, the cilia or flagella. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" Dr. Bose, however, has shown that nerve is indisputably motile and that the characteristic variations in the response of nerve are, generally speaking, similar to those of the muscle. Sir Jagadis Chunder Bose His Life and Speeches The mean percentages of motile sperm found before and after freezing and thawing are shown also. Preservation of Bull Semen at Sub-Zero Temperatures 2011-08-13T02:00:22.680Z In other cells, either of the same filament or else of the small male plants already mentioned, small motile cells, called spermatozoids, are formed. Elements of Structural and Systematic Botany For High Schools and Elementary College Courses The motile organs consist of an adoral zone of membranelles, which stretch along the left edge of the peristome and the front edge of the body. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 For instance, B. megatherium and B. subtilis pass in a few hours after commencement of growth from a motile stage with peritrichous cilia, into one of filamentous growth preceded by casting of the cilia. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" Many forms are motile—some in virtue of fine thread-like flagella, and others through contractility of the protoplasm. Manual of Surgery Volume First: General Surgery. Sixth Edition. These samples were stored at 5° C. and examined for motile sperm after 1, 3, and 7 days. Preservation of Bull Semen at Sub-Zero Temperatures 2011-08-13T02:00:22.680Z The more motile organisms are constantly, by very reason of their motility, encountering situations which put a strain upon the attention. Sex and Society With the exception of a caudal filament there are no other motile organs; this is about half as long as the body, structureless, hyaline, and sharply pointed. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 D. A motile rodlet with one cilium and with a spore formed inside. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" These cells functioning for reproduction continued to differentiate more and more, until large ova and small, motile spermtozoa were definitely developed. Taboo and Genetics A Study of the Biological, Sociological and Psychological Foundation of the Family A mean of 32 percent of the sperm in the samples that were plunged directly into an alcohol bath at -79° C. were motile after thawing. Preservation of Bull Semen at Sub-Zero Temperatures 2011-08-13T02:00:22.680Z The motile force is imparted to the gonidium by dense rows of waving cilia with which it is completely surrounded. Scientific American Supplement, No. 460, October 25, 1884 Atkinson is pretty certain that he has isolated a very motile bacterium in the snow. Scott's Last Expedition Volume I While many forms are fixed to the substratum, others are free, being in this condition either motile or immotile. Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2 "Baconthorpe" to "Bankruptcy" They also occasionally have an associate muscular development in the subcutaneous tissues similar to the panniculus adiposus of quadrupeds, giving them preternatural motile power over the skin. Anomalies and Curiosities of Medicine Furthermore all the vibrios, which crowded the liquid as motile threads, are destroyed and disappear. The Harvard Classics Volume 38 Scientific Papers (Physiology, Medicine, Surgery, Geology) The upper part of the antheridium becomes separated from the parent stem by a septum, and its contents are converted into ciliated motile antherozoids. Scientific American Supplement, No. 460, October 25, 1884 He proceeded to draw divisions between the bottom organisms without power of motion, benthon, the nekton motile life in mid-water, and the plankton or floating life. Scott's Last Expedition Volume I They must still be described as minute spheres, rods, or spirals, with no further discernible structure, sometimes motile and sometimes stationary, sometimes producing spores and sometimes not, and multiplying universally by binary fission. The Story of Germ Life By observing whether the root bends up or down we can decide whether the impulse to bend originates in the tip or in the motile region. Darwin and Modern Science Other species may be motile at one time and stationary at another, while at a third period it is a simple mass of spherical spores. The Story of Germ Life Pfeffer and Czapek showed that it is possible to bend the root of a lupine so that, for instance, the supposed sense-organ at the tip is vertical while the motile region is horizontal. Darwin and Modern Science If the motile region is directly sensitive to gravity the root ought to curve downwards, but this did not occur: on the contrary it continued to grow horizontally. Darwin and Modern Science |
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