| 单词 | annelid |
| 例句 | Swima bombiviridis, a bizarre deep-sea annelid, or ringed worm, collected off the coast of California, has modified gills that it casts off like little bombs. New species top 10 2010-05-23T16:38:00Z Or ghosts that gallop or canter or somersault, instead of the same old slithering annelids? Who's afraid of the big, bad monsters in Prometheus? 2012-06-14T15:54:20Z Scientists have compiled many more nematode connectomes, as well as brain maps of a marine annelid worm, a tadpole, a maggot and an adult fruit fly. Worm Brains, Decoded like Never Before, Could Shed Light on Our Own Mind 2023-08-21T04:00:00Z Most of the flatworms are classified in the superphylum Lophotrochozoa, which also includes the mollusks and annelids. Fundamentals of Biology 2015-01-01T00:00:00Z The annelids traditionally include the oligochaetes, which include the earthworms and leeches, the polychaetes, which are a marine group, and two other smaller classes. Concepts of Biology 2013-04-25T00:00:00Z Gills are found in mollusks, annelids, and crustaceans. Biology for AP Courses 2022-06-09T00:00:00Z Some terrestrial invertebrates, including annelids and mollusks, produce urine in nephridia. Miller & Levine Biology 2018-01-01T00:00:00Z Researchers looked back at more than 100 years of research, and they found a fascination with annelids with mixed up appendages was strong--and that research still has relevance today. Two-Headed Worms Tell Us Something Fascinating About Evolution 2022-05-10T04:00:00Z We discuss the more complex annelids and arthropods. Fundamentals of Biology 2015-01-01T00:00:00Z Figure 15.29 In this schematic showing the basic anatomy of annelids, the digestive system is indicated in green, the nervous system is indicated in yellow, and the circulatory system is indicated in red. Concepts of Biology 2013-04-25T00:00:00Z Most vertebrates and some invertebrates, like this annelid earthworm, have a closed circulatory system. Biology for AP Courses 2022-06-09T00:00:00Z Starring a bespeckled annelid, the little guy is on the crawl from a raven and Macbeth’s witches trying to use him in a potion. Blu-ray movie reviews: ‘Each Dawn I Die’ and ‘Another Thin Man’ 2021-04-21T04:00:00Z Found in China's Yangtze Gorge, along with 34 other fossils of the same species, researchers believe Y. spiciformis is related to a group of anthropods that includes crustaceans and millipedes or annelids. 'Death march' of 550M year-old worm might be earliest known animal trail, study finds 2019-09-05T04:00:00Z Invertebrates include insects, arachnids, nematode worms, annelid worms, mollusks, flatworms, cnidarians, sponges, echinoderms, and crustaceans. Fundamentals of Biology 2015-01-01T00:00:00Z Significant differences between leeches and other annelids include the development of suckers at the anterior and posterior ends, and the absence of chaetae. Concepts of Biology 2013-04-25T00:00:00Z Tube worms are annelids — they're actual worms, like earthworms, not clams. Scientists find giant, elusive clam known as ‘the unicorn of mollusks’ 2017-04-17T04:00:00Z Experts at the Natural History Museum bestowed the accolade upon the annelid after it ventured above ground in a Cheshire vegetable plot. Widnes earthworm Dave wriggles into record books - BBC News 2016-11-03T04:00:00Z “It would be of great interest to see if these annelid sperm cells preserved in the cocoons also contain subcellular structures,” says Archer, who also did not participate in the research. 50-Million-Year-Old Worm Sperm Found in Antarctica 2015-07-14T04:00:00Z Arthropods are more closely related to nematodes than they are to annelids. Fundamentals of Biology 2015-01-01T00:00:00Z Polychaete annelids have parapodia that participate in locomotion and respiration. Concepts of Biology 2013-04-25T00:00:00Z The fossilized cells, reported today as the oldest animal sperm ever collected, belong to a class of cocoon-producing worms called clitellate annelids, more commonly known as earthworms, leeches, and their relatives. Oldest animal sperm unearthed in Antarctica 2015-07-14T04:00:00Z And the people who found the 0.5-inch long fossil had classified it as an annelid worm — worms that include leeches and earthworms. After 50 years scientists discover head of the insane Hallucigenia 'worm' 2015-06-24T04:00:00Z By comparing the fossil sperm’s physical characteristics with that of living worms, the team concluded that they belonged to annelids, the group of animals that includes earthworms and leeches. 50-Million-Year-Old Worm Sperm Found in Antarctica 2015-07-14T04:00:00Z The illustration shows a cross-section of an annelid. Fundamentals of Biology 2015-01-01T00:00:00Z A large number of bacterial sequences, reports the team, were from "animal commensals, mutualists and pathogens… including those associated with annelids, sea anemones, brachiopods, tardigrades and fish." Antarctic lake 'might have fish' 2013-07-08T13:29:29Z Spoon worms have added to the basic annelid body plan a proboscis, which Gallo described as a “tongue”. What Lives at the Bottom of the Mariana Trench? More Than You Might Think 2013-04-15T00:15:05.547Z Molluscs, annelids and numerous smaller phyla typically share stereotyped spiral cleavage patterns, cell-fate assignments and characteristic ciliated trochophore larvae, features that originated in the Precambrian era. Insights into bilaterian evolution from three spiralian genomes 2013-01-23T18:22:45.773Z We have an example of such a condition in those worms which live in calcareous tubes, and which are some of those called “tubicolous annelids.” The Contemporary Review, Volume 36, October 1879 2012-04-18T02:00:17.060Z The photo shows a swimming annelid known as a bloodworm. Fundamentals of Biology 2015-01-01T00:00:00Z A kind of annelid larva having both a dorsal and a ventral circle of special cilia. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z The mbalolo is a marine annelid about six inches long and of the thickness of vermicelli. The Fijians A Study of the Decay of Custom 2011-12-30T03:00:25.917Z The Proterozoic fossils thus far discovered include not only microscopic radiolarians such as still form the red ooze of the deepest ocean floors, but the much more significant tubes of annelids or worms. Climatic Changes Their Nature and Causes 2011-10-28T02:00:24.840Z Deep sea annelids are an incredibly diverse group and scientists believe they perform vital recycling of nutrients on the seabed. "What would you name a new worm?" asks UK museum 2011-09-22T16:37:04Z A significant difference between leeches and other annelids is the development of suckers at the anterior and posterior ends and a lack of chaetae. Fundamentals of Biology 2015-01-01T00:00:00Z A group of annelids, so called because the species composing it have no special organs of respiration. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z The stem has, in fact, the ringed formation of the annelids, or worms. Sea Monsters Unmasked and Sea Fables Explained 2011-07-11T02:00:07.857Z But it is usual to extend the term fossil to even the casts or impressions of such remains, and to foot-marks and tracks, whether of vertebrates, molluscs, crustaceans, or annelids. Geology 2011-02-20T03:00:12.660Z The unnamed worms are known as annelids, a group that also includes the familiar garden earthworm, as well as more unusual critters such as the giant hydrothermal vent tubeworm. "What would you name a new worm?" asks UK museum 2011-09-22T16:37:04Z Due to morphological similarities in their segmented body types, annelids and arthropods were once thought to be closely related. Fundamentals of Biology 2015-01-01T00:00:00Z The term in also applied to similar organs on the heads of other arthropods and of annelids. Webster's Unabridged Dictionary 2012-03-24T02:00:23.513Z "It is also the first one of collective movements of annelids." Earthworms make 'group decisions' 2010-04-09T09:31:00Z The presence of these annelids teaches us that the water was salt or brackish. Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Sometimes an annelid worm lives inside the shell along with the hermit and often the outside is covered with zoophytes. Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 6 "Coucy-le-Château" to "Crocodile" However, molecular evidence has revealed that arthropods are actually more closely related to nematodes, now comprising the ecdysozoan clade, and annelids are more closely related to mollusks, brachiopods, and other phyla in the lophotrochozoan clade. Fundamentals of Biology 2015-01-01T00:00:00Z But it may be consolatory, in view of the very plebeian character of the earth-worm, to know that various of the annelids of the sea have a much more aristocratic bearing. A History of Science, Volume 5(of 5) Aspects Of Recent Science The free-swimming embryo of an aquatic annelid, being ovate and not ciliated all over, moves with one end foremost; and its differentiations proceed in conformity with this contrast of circumstances. Essays: Scientific, Political, & Speculative, Vol. I The Aphrodita aculeata, a marine annelid, remarkable for the brilliant iridescence of the long silky hairs with which its sides are covered. The Sailor's Word-Book An Alphabetical Digest of Nautical Terms, including Some More Especially Military and Scientific, but Useful to Seamen; as well as Archaisms of Early Voyagers, etc. Thus, for instance, an insect, standing at the head of the articulated animals, is, in the larva state, a true annelid, or worm, the annelida being the lowest in the same class. A Theory of Creation: A Review of 'Vestiges of the Natural History of Creation' Who, for instance, would dare to distinguish the traces of fear in annelids from those of surprise in higher animals? The Silesian Horseherd - Questions of the Hour Thus the filmy and delicately beautiful structures that decorate the pleasant home of the quaint little seahorse in the aquarium—structures having more the appearance of miniature palm-trees than of animals—are really annelids. A History of Science, Volume 5(of 5) Aspects Of Recent Science Evidently then, corals, annelids, inferior molluscs, and crustaceans of low grade, will chiefly constitute the early Fauna. Essays: Scientific, Political, & Speculative, Vol. I Realise, if you can, the stigma attached to the hard-working order of garden annelids when, possibly in their very presence, one human being addresses another as a "worm"! Punch, or the London Charivari, Vol. 146, February 18, 1914 I do not mean to say that this process of ratiocination really occurs in the annelid; its intelligence goes no farther, probably, than conscious determination. The Dawn of Reason or, Mental Traits in the Lower Animals But the same may be said of every single arthropod and annelid if it be meant that all these organs are not contained in every possible slice. On the Genesis of Species This is the view that the type of the invertebrate ancestor is the annelid—a form whose most familiar representative is the earth-worm. A History of Science, Volume 5(of 5) Aspects Of Recent Science You thought, of course—I know you did— That Father left his hole, A briskly virtuous annelid, To take an early stroll. Punch, or the London Charivari, Volume 159, October 27, 1920 He was afterwards associated with H. Milne Edwards in works on annelid worms. Lamarck, the Founder of Evolution His Life and Work The annelid is able to distinguish the beetle when it is several inches distant, and the change from an animated worm to a seemingly lifeless thread is startling in its exceeding rapidity. The Dawn of Reason or, Mental Traits in the Lower Animals The main characteristic is the entire absence of mouth and œsophagus, the animals being parasitic in the digestive tract of various annelids. Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901 To begin with less characteristic organs the digestive system is much like that of the annelid or schematic worm, but with greatly increased glandular and absorptive surfaces. 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 With the advent of food—in the form of annelid eggs—the reverse of these events took place. Popular Science Monthly Oct, Nov, Dec, 1915 — Volume 86 They are present in many annelids, brachiopods, mollusks, and crustaceans. The Gutenberg Webster's Unabridged Dictionary Section S Thus, for instance, an insect, standing at the head of the articulated animals, is, in the larva state, a true annelid, or worm, the annelida being the lowest in the same class. Vestiges of the Natural History of Creation The most popular of these hypotheses was the annelid theory, which derived the Vertebrates from the Worms. The Evolution of Man — Volume 2 But the annelids were probably the first animals to develop an eye capable of forming an image of external objects. 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 The annelids were supposed to be the direct ancestors, not only of the crustacea and tracheata, but also of the vertebrates. The Evolution of Man — Volume 1 In the court-yards you may occasionally catch sight of some splendid palm with silver-gray stem so barred as to look jointed, like the body of an annelid. Two Years in the French West Indies The occurrence of annelids is important, on account of their character and status in the animal kingdom. Vestiges of the Natural History of Creation Showing opening of burrow, and tube with wrinklings or crossing ridges, probably produced by a tentacled sea worm or annelid. The Student's Elements of Geology The annelid had hit upon a most advantageous line of development, which led ultimately to the insect. 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 P.S.—Your woodcut of Lingula is most skilfully introduced to compel one to see its likeness to an annelid. More Letters of Charles Darwin — Volume 1 While grazing these rocky slopes lost under the waters, I still spotted some seashells, tube worms, lively annelid worms from the genus Spirorbis, and certain starfish specimens. Twenty Thousand Leagues Under the Sea Earth-worms must be considered as terrestrial animals, though they are still in one sense semi-aquatic, like the other members of the great class of annelids to which they belong. The formation of vegetable mould through the action of worms, with observations on their habits In the eyes of most men…the earthworm is a mere blind, dumb, senseless, and unpleasantly slimy annelid. Life and Letters of Charles Darwin — Volume 2 In the annelid they are projections of the parapodia, in the mollusk expansions of the skin, where the foot or creeping sole joins the body. 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 SEGMENTS.—The transverse rings of which the body of an articulate animal or annelid is composed. The Origin of Species by means of Natural Selection, 6th Edition For the eggs of certain animals membrane-formation is all that is required to induce a complete development of the unfertilised egg, e.g. in the starfish and certain annelids. Darwin and Modern Science The reproductive and digestive systems, while somewhat improved, are not very markedly higher than those of annelids. 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 It is interesting to note that a form, peripatus, still exists which stands almost midway between annelids and insects and has only four segments in the head. 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 The study of the insect will show us clearly the advantages and defects of the annelid plan. 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 That the mouth of an animal can migrate seems at first impossible, but if we had time to examine the embryology of annelids and insects, it would no longer appear inconceivable or improbable. 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 The annelid added segmentation, and thus greater freedom of motion by the parapodia. 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 Then the annelids settled to the bottom and crept, and all their descendants remained creeping forms. 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 In the schematic worm and annelid the reproductive system is simpler, though perhaps equally effective. 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 The legs are the parapodia of annelids carried to a vastly higher development. 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 The muscles are no longer arranged to form a sack as in annelids. 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 But in the annelid the mouth is on the second segment; here it is on the fourth. 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 They transformed the annelid parapodia into legs and developed wings. 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 This period extends from the beginning of life up to the time when the annelid was the highest living form yet developed. 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 The annelid had teeth or claws attached to the proboscis. 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 The abdomen of the insect is as clearly composed of distinct segments as the body of the annelid. 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 The excretory organs, kidneys, are composed primitively of nephridial tubes like those of the schematic worm or annelid, but immensely increased in number, modified, and improved in certain very important particulars. 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 Now I do not wish to conceal from you that many good zoölogists believe that the vertebrate is descended from annelids; but for this and other reasons such a descent appears to me very improbable. 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 Then the flat worms and mollusks took to a creeping mode of life, while the annelids and vertebrates still swam. 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 But we must take a little glance at mollusks, including our clams, snails, and cuttle-fishes; and at the articulates, including annelids and culminating in insects. 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 The eye of the turbellaria distinguishes only light from darkness, that of the annelid is a true visual organ. 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 The lower members are still usually reckoned as worms, and are included under the annelids. 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 The actions of all animals below the annelid are mainly reflex or automatic, unconscious and involuntary. 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 So in the hydra and the annelid you must look at the possibilities of the nervous system before you or he think that digestion and muscle are all. 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 The annelid had fin-like parapodia, approaching the legs of insects about as closely as the fins of a fish approach the legs of a mammal. 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 Along the line leading from annelids to insects instinct is becoming dominant. 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 Mr. Darwin believes that traces of it can be found in earthworms and other annelids. 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 Thus in the advance of annelids to insects the muscular system increases in relative bulk, and absolutely in complexity. 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 To form its skeleton the crab had only to thicken the cuticle already present in the annelid. 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 |
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