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chap 27
| Question | Answer |
|---|---|
| Small pincher that helps echinoderms catch food and remove foreign materials from the skin. | Pedicellaria |
| System of fluid-filled, closed tubes that allow echinoderms to control movement and get food. | Water-vascular system |
| Strainerlike opening through which water enters the water-vascular system in most echinoderms. | Madreporite |
| One of the muscular, small, fluid-filled tubes with suction-cuplike ends that enable echinoderms to move and collect food. | Tube foot |
| In echinoderms, the muscular sac that contracts to force water into the tube foot, allowing it to extend. | Ampulla |
| 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. | Chordate |
| Chordate without a backbone. | Invertebrate chordate |
| Flexible, rodlike structure extending the length of the chordate body, enabling the body to bend and make side-to-side movements. | Notochord |
| Chordate structure used primarily for locomotion. | Postanal tail |
| Tube-shaped chordate nerve cord located above the digestive organs. | Dorsal tubular nerve cord |
| In chordate embryos, one of the paired structures connecting the muscular tube lining the mouth cavity and the esophagus. | Pharyngeal pouch |
Created by:
jessc14
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