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bio 2 ch. 27 vocab

vocabulary

TermDefinition
pedicellaria small pincher that helps echinoderms catch food and remove foreign material from the skin
water-vascular system system of fluid filled, closed tubes that allow echinoderms to control movement and get food
madreporite strainer like opening through witch water enters the water-vascular system in most echinoderms
tube foot one of the muscular, small, fluid-filled tubes with suction cup like ends that enable echinoderms to move and collect food
ampulla in echinoderms, the muscular sac that contracts to force water into the tube foot, allowing it to extend
chordate animal of the phylum chordata having a dorsal tubular nerve cord, a notochord, pharyngeal pouches, and a postanal tail at some point in its development
invertebrate chordate chordate without a backbone
notochord flexible, rodlike structure extending the length of the chordate body, enabling the body to bend and make side to side movements
postanal tail chordate structure used primarily for locomotion
dorsal tubular nerve cord tube-shaped chordate nerve cord located above the digestive organs
pharyngeal pouch in chordate embryos, one of the paired structures connecting the muscular tube ling the mouth cavity and the esophagus
Created by: Emmelee
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