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Definition
| "Spiny skin" marine bottom-dwellers |
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Definition
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Definition
| Sea urchins and sand dollars. |
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Term
| Chordata: 3 defining characteristics. (phylum) |
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Definition
| dorsal hollow nerve cord, notocord, pharyngeal slits. |
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Term
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Definition
| Flexible rod. Early vertebra-like structure. Protects nerve cord. |
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Term
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Definition
| slits leading to the pharynx/mouth cavity. for feeding. |
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Term
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Definition
| "no-jaw" jawless fish. e.g. lamprey |
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Term
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Definition
| Cartilaginous Fishes. e.g. sharks, rays, skates. |
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Definition
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Term
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Definition
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Term
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Definition
| Sensory pits in head of skin, detects water currents. |
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Term
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Definition
| Internal fertilization, water-tight egg, dry skin/scales, squeeze throat to pump air to lungs. |
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Term
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Definition
| Endothermic. Hair. Mammary glands. Specialized teeth. Raise their young. |
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Term
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Definition
| Birds. Feathers. Lightweight skeleton. |
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Term
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Definition
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Term
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Definition
| Central cavity of sponge. |
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Term
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Definition
| Skeletal structures in sponges for support and protection from predators. |
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Term
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Definition
| large hole at top of sponge, where water flows out after being filtered through pores. |
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Term
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Definition
| Flagellated cells that create current to flow water through sponge. |
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Term
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Definition
| hydras, jellyfish, anemones, corals. |
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Term
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Definition
| Upwards facing, tentacles up, catches passing food. |
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Term
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Definition
| jelly-form, tentacles down, motile. |
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Term
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Definition
| soft-bodied animals that secrete a mantle |
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Term
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Definition
| Scraping tongue of a mollusk. |
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Term
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Definition
| Segmented worms. Earthworms, leeches, polychaete marine worms. |
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Term
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Definition
| small bristle-like appendages on Annelids. |
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Term
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Definition
| Insects, arachnids, crustaceans, centipedes & millepedes, horseshoe crabs. |
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Term
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Definition
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Term
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Definition
| Tagmata containing head and thorax combined (e.g. in arachnids). |
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Term
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Definition
| Groupings of body segments into specialized groupings. |
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Term
| Arthropod exoskeleton is made of... |
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Definition
| Chitin forms the epidermis of... |
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Term
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Definition
| Fangs, pedipalps, 4 pairs of walking legs. |
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Term
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Definition
| Centipedes. One leg per body segment. |
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Definition
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Term
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Definition
| Centipedes and millipedes combined. |
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