How To Use Hydroid In A Sentence
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Well-studied examples occur in the hydractiniid hydroids, which encrust hard substrata with stolons that serve as tube-like connections between feeding polyps.
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It is usually present on Campanularian hydroids, but may be found on algæ and Bryozoa.
Marine Protozoa from Woods Hole Bulletin of the United States Fish Commission 21:415-468, 1901
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The most numerous inhabitants are hydroids and copepods.
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Aside from its temporary and permanently resident fish, the underside is decorated with sponges, hydroids, tunicates, tube worms, cup corals and anemones.
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There were dense walls of soft corals, sponges, anemones and hydroids, nudibranchs, creepy-crawlies and lots of fish.
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The leatherjackets and wrasses continued their work below them, as tiny tubularia hydroids waved their tentacles from the hull.
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He had shown that hydroid jellyfish known as naked-eyed medusae reproduce not only by spewing eggs, but also by asexual budding, which he found marvelous to behold.
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The hydroid tissues, in particular, are the general run of moss water storage cells and are probably only remotely related to the xylem of tracheophytes.
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On the walls are a riot of soft corals, sponges, hydroids and anemones in all shapes and sizes.
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In colonial hydroids, the individual polyps, or zooids, are differentiated for different functions: gastrozooids feed, dactylozoids capture prey, and gonozooids give rise to medusoids with gametes.
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Main Characteristics Radial symmetrical include the hydroids, jellyfish, anemones, and corals have tentacles with stinging cells in their tips which are used to capture and subdue prey one of two basic body types, polypoid or medusoid.
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The hull here is rich in marine life - hydroids, tunicates, anemones and sponges.
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Along the tops of the walls and gullies are many small hydroid clumps which, in turn, attract a range of delicately coloured nudibranchs that feed on them.
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It is not to be supposed that one could occupy one's self with the animals for so long without coming to some conclusion as to their systematic place, however subsidiary to observation such considerations must always be regarded, and it seems to me (although on such matters I can of course only speak with the greatest hesitation) that just as the more minute and careful observations made upon the old "Vermes" of Linnaeus necessitated the breaking up of that class into several very distinct classes, so more careful investigation requires the breaking up of Cuvier's "Radiata" (which succeeded the "Vermes" as a sort of zoological lumber-room) into several very distinct and well-defined new classes, of which the Acalephae, Hydrostatic Acalephae, actinoid and hydroid polypes, will form one.
The Life and Letters of Thomas Henry Huxley
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Now, four-fifths of Hydroid's AUV orders are for embedded, integrated GPS systems.
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The most numerous inhabitants are hydroids and copepods.
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Before long, similar green proteins were detected in many bioluminescent coelenterates including various medusae, apparently all luminescent hydroid polyps, and a few others.
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Colonies may be mistaken for hydroids, corals, or even seaweeds.
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Obelia Hydroid: First Generation - The first obelia generation, illustrated in the photomicrograph in this section, lives in hydroid colonies, consisting of polyps.
Undefined
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It feeds mainly on sponges, but also takes tunicates, algae, zoantharians, gorgonians, hydroids, bryozoans, and seagrasses.
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Though I could no longer see the clam, I knew it had pushed its siphon to the surface for feeding, and it occurred to me that the hydroid, by creating an eddy in the swash, might actually help the clam obtain food.
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Turning on our torches, the walls came alive with a thick covering of hydroids, sponges and anemones.
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He and his colleagues worked primarily on hydroids and planarians.
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1 Each such zooid in these pelagic colonial hydroids or hydrozoans has a high degree of specialization and, although structurally similar to other solitary animals, are all attached to each other and physiologically integrated rather than living independently.
Pounding The Rock
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As the roiling backwash streamed past, it scoured around me, and when the froth cleared, there beneath my feet were multitudes of clams, all small and without hydroids.
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Linnaeus necessitated the breaking up of that class into several very distinct classes, so more careful investigation requires the breaking up of Cuvier's "Radiata" (which succeeded the "Vermes" as a sort of zoological lumber-room) into several very distinct and well-defined new classes, of which the Acalephae, Hydrostatic Acalephae, actinoid and hydroid polypes, will form one.
Life and Letters of Thomas Henry Huxley — Volume 1
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In studies with a microscope, Forbes had shown that hydroid jellyfish known as naked-eyed medusae reproduce not only by spewing eggs, but also by asexual budding, which he found marvelous to behold.
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The hull here is rich in marine life - hydroids, tunicates, anemones and sponges.
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There were dense walls of soft corals, sponges, anemones and hydroids, nudibranchs, creepy-crawlies and lots of fish.
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In the coelenterate Obelia, the egg develops into a colonial hydroid consisting of a series of branching Hydra-like organisms called polyps.
