Term
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Definition
| brittle stars, sea stars, sea urchins, sand dollars, sea cucumbers, Sea lilies, feather dusters, feather star, etc. |
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Term
| endoskeleton, spiny skinned- |
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Definition
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Term
| deuterosome that lack cephalization- |
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Definition
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Term
| Phylum Echinodermata radial symmetry- |
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Definition
| (oral surface-mout on bottom, aboral surface-anus on top) |
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Term
| Phylum Echinodermata respiration, circulation, and movement- |
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Definition
| water vascular system(water pressure system) |
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Term
| Phylum Echinodermata madreporite- |
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Definition
| opening where water enters for the water vascular system |
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Term
| Phylum Echinodermata tube feet (suction cups)- |
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Definition
| function in locomotion, excretion, capturing food, and gas exchange |
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Term
| Phylum Echinodermata nervous system- |
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Definition
eye spots-differentiate light and dark
nerve ring and net-can regenerate lost parts if nerves aren't cut |
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Term
| Phylum Echinodermata reproduction- |
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Definition
| external, mostly seperate sexes |
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Term
| specialized cells, tissues, and organs- |
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Definition
| simple in sponges up to complex in mollusks and athropods |
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Term
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Definition
| asymmetry in sponges, readial in Cnidarians and echinoderms, bilateral in the rest |
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Term
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Definition
| from nothing, to ganglia (worms and arthropods), to a true brain (certain mollusks) |
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Term
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Definition
| include most invertebrates with bilateral symmetry |
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Term
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Definition
| acoelomates (flatworms), pseudocoelomates (roundworms), and true coelomates (more complex animals) |
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Term
| Embryological development- |
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Definition
| protostomes (worms, arthropods, and mollusks), deuterostomes (echinoderms and vertebrates) |
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