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20 Cards in this Set
- Front
- Back
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Body Plan of some sponges. Not common
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asymmetrical
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Body plan of some protists, sea aneomes.
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sperical symmetry
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Body plan of cnidardia and ctenophora
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radially symmetrical
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Body plan of rapidly moving animals, humans
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bilateral symmetry
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Fluid filled spaces
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body cavity
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Animals that lack an enclosed body cavity
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acoelomates
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Have abody cavity in which internal organs are suspended in liquid.
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pseudocoelomate
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Animals that have a body cavity that develops within the mesoderm. Has both internal and external muscles
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coelomate
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Sponges, sessile, loosely organized
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porifera
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Have two cell layers, a blind gut (mouth and anus the same)jellyfish, sea anemones, coral, carnivores
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cnidarians
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Sessile stage of a cnidarian. Has a cylindrical stalk attached to the substratum. Reproduce by budding.
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polyp
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Free-swimming stage of a cnidarian life cycle. Typical jellyfish looking thing.
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medusa
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Precursor to a polyp. Cnidarian larva.
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planula
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Class of animals that contain sea anemone and coral
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Anthozoan
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Comb jellies, simplest animal to have both mouth and anus.
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Ctenophores
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Protostomes that grow by adding to the size of their skeleton. Have free living trochophore larva.
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Lophotrochozoans
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Flatworms, the simplest lophotrochozoans
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Platyhelminthes
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Related to flatworms, small, bilateral, free-living marine and freshwater animals.
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tubllaria
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External parasites of fishes and other aquatic vertebrates.
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monogenea
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bilatterally symmetrical, unsegmented, pseudocoelomate lophotrochozoans
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rotifers
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