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4 Cards in this Set
- Front
- Back
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Chordates |
an animal of the phylum Chordata, having at some stage of development a dorsal nerve cord, a notochord, and gill slits and including all vertebrates. |
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Deutrostomes |
Animals that in which the anus develops from the first opening in the embryo. |
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Water vascular system |
A system of closed, fluid-filled tubes and ducts of echinoderms used in clinging, locomotion, feeding, and respiration. |
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Tube foot |
External fluid filled muscular tubes serving as organs of locomotion, food handling, and respiration. |
