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3 Cards in this Set

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  • Back
ECHINODERM
a slow moving or sessile marine deuterostome with a water vascular system and, in larvae, bilateral symmetry; echinoderms include sea stars, brittle stars, sea urchins, feather stars and sea cucumbers
WATER VASCULAR SYSTEM
a network of hydraulic canals unique to echinoderms that branches into extensions called tube feet which function in locomtion, feeding and gas exchange
TUBE FOOT
one of numerous extensions of an echinoderm's water vascular system; tube feet function in locomotion, feeding and gas exchange