class descriptions

class descriptions - Hydrozoa These organisms are found in...

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Hydrozoa – These organisms are found in both polyp and medusa stages, with the polyp stage being colonial. Scyphozoa – These organisms have a reduced polyp stage and a free swimming medusa stage. Cubozoa – These organisms have a box-shaped medusa stage. Anthozoa – These organisms lack the medusa stage and are sessile, colonial polyps. Turbellaria – These organisms are free-living, ciliated predators and scavengers of moist environments. Trematoda – These organisms are endoparasites of vertebrates with two suckers, known as flukes. Cestoda – These organisms are endoparasites of vertebrates with no head and no digestive system, known as tapeworms. Polychaeta – These organisms are free-living marine sand worms with chaetae on each segment. Oligochaeta – These organisms are earthworms and freshwater annelids, named for relatively few numbers of chaetae. Hirundinea – These organisms are parasitic and predatory leeches t hat lack the characteristic chaetae common to other annelids. Polyplacophora – These organisms have a shell with eight plates and no head, known as chitons.
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This note was uploaded on 08/25/2008 for the course BIOL 112 taught by Professor Vaughn during the Spring '08 term at Texas A&M.

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class descriptions - Hydrozoa These organisms are found in...

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