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9 Cards in this Set
- Front
- Back
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Porifera (sponge)
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-simple/colonial
-cells stick by adhesion -spicules (support) -sesille (don't move) -little diversity in reproduction |
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Cnidaria (jellyfish)
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-multicellular
-2 germ layers (ecto and endo) -cells (nematocysts) -radial symmetry -sessile/ motile |
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Platyhelminthes (flatworm)
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-ganglion development (brain)
-eye spot -bilateral symmetry -parasitic -motile |
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Nematoda (roundworm)
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-parasitic
-2 tissue layers (diploblastic) |
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Annelida (Earth worm)
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-segmentation, tripoblastic, coelomate
-dueterostome (anus) |
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Mollusks (snail/octupi)
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-cephalization
-reduced segmentation -mantle (layer of calcium) |
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Arthropods (spider)
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-jointed appendages
- 4 lineages: trilobites, chelicerates (spiders), crustaceans (crabs), uniramians (centipedes) - motile on land |
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Echinoderms (starfish)
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-calcium carbonate internal support system
-lost cephalization and bilateral symmetry |
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Invertebrate Chordates
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- notochord
-hollow dorsal nerve chord -pharyngeal slits- gas exchange -muscular postanal tail |
