Definitionn. a small vascular growth on the surface of a mucous membrane
Last update: September 6, 2015
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(I) The polyp (hydropolyp) is of simple structure, typically much longer than broad, without ectodermal oesophagus or mesenteries, such as are seen in the anthopolyp (see article Anthozoa); the mouth is usually raised above the peristome on a short conical elevation or hypostome; the ectoderm is without cilia. [Please select]
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Each column undulated and swelled like the ring of a polyp. [Please select]
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_Hydra_, the freshwater polyp, is one of the simplest of the Hydrozoa both as regards structure and as regards life-history. [Please select]
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If a small animal comes in contact with the tentacles of the polyp, it instantly becomes paralysed. [Please select]
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If the polyp is starved or exposed to a high temperature, these particles disappear and it becomes practically colourless. [Please select]
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BAKER, "An attempt towards a natural history of the Polyp"* (London). [Please select]
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_Aboral_ (or _basal_) The disk by means of which a free polyp _disk_ attaches itself to external objects. [Please select]
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_Column_ The upright or potentially upright part of a polyp (_q.) [Please select]
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The part of the egg that is in contact with the parent-polyp is bare. [Please select]
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Indeed, it differs little as regards structure from the ideally simple coelenterate sketched in a former paragraph, while its descent is direct from one polyp to another, every generation laying its own eggs[AL]. [Please select]
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Sometimes the cyst adheres to the thread and remains attached to its cnidoblast and to the polyp, but sometimes the thread breaks loose. [Please select]
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