BSCI103 - test 2

BSCI103 - test 2 - Animal phylums: common names where they...

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Animal phylums: common names … where they live… couple examples of each … evolutionary advance (ex. jellyfish radial symmetry, poisonous stinging cells, gasrovascular cavity, flatworms = Name phylum – give example of animal – one important thing Primitives – sponges, stationary sac like organisms, no true tissues Jellyfish /starfish– radial symmetry, gastrovascular cavity Flatworms – bilateral symmetry, some parasites Nematodes – no true ceolem (body cavity separating internal tissues from external tissues) Mollusks – complex, true ceolem, snails, slugs, oysters, clams, muscle, foot, mantle (hard on outside), live in sea (gastropods) Annelids – segmented worms , earth worms, closed circulatory system Arthropods – most on planet, exoskeleton, jointed appendages, insects Echinoderms – sea stars, sea urchins, sand dollars , spiny outer surface, regenearte appendages Chordata - dorsal hollow nerve cord, flexible cord to give form, gill slits, post anal tail Tunicates , lancelets (brain)
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BSCI103 - test 2 - Animal phylums: common names where they...

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