Term
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Definition
| Aquatic, moist terrestrial, hosts (>80% parasites) |
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Term
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Definition
| Flat; Acoelomate (no body cavity) |
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Term
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Definition
| Triploblastic: (mesoderm in early stages). mesoderm-->muscles, tissues for repro. and excretion, Parenchyma. |
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Term
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Definition
| Beginning of organ systems. reproduction and excretion; NOT gas exchange or circulation. High surface area and volume. Have gut, no anus; some lack gut. |
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Term
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Definition
| Cephalized:concentration of nervous tissue at anterior; brain; longitudinal nerve cords |
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Term
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Definition
| Some have statocysts; chemo sensory pits; mechano receptors; photo receptors: eye spots(light vs dark) |
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Term
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Definition
| Protonephridia: first kidney |
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Term
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Definition
| Simultaneous hermaphrodites(male, female gametes at same time).some self fertilize at same time; copulation w/ sperm transfer |
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