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| covers the outside of the animal |
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| a coelom is a body cavity that lies between the gut and the body wall. |
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| anterior and posterior. Dorsal and ventral. |
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| mouth leads to it, food then travels to a long intestine. |
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| organism has both male and female gametes |
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| flagella that pump water. |
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| a concentration of nervous tissue that defines anterior end. |
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| function together with sensory neurons. |
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| spiecialized nerve cells in the anterior end. |
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| animals whose body cavity is line with both mesodermal and endodermal layers |
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| two in nematodes and function to rid the roundworm of excretory products. |
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| vasdeferens enlarges to form this. |
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