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Definition
3 farthest from madreporite are trivium
2 closest are bivium
Helps w/movement and capture of prey |
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Definition
reproductive organ; makes sperm/eggs
Ovaries/testes |
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Definition
| Located in ambulacral groove, aids in locomotion & feeding; aso gas exchange/remove nitrogen waste |
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Definition
| Light sensitive organ at tip of each arm |
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Definition
| Sieve plate; intake for water vascular system, off center of central disk, small pores |
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Term
| Terminal light sensitive tube foot |
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Definition
| At base of each tentacle; light sensory |
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Definition
| Opening to digestive system for waste removal |
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Definition
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Definition
| Surrounds the internal organ systems; chief body cavity |
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Definition
| covered by thin epidermis, project externally through body wall for protection |
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Definition
| Digestive gland; makes enzymes to digest food in the stomach |
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Definition
| Aboral portion of the stomach connected by ducts to the five pairs of hepatic caeca, breaks down food w/help of enzymes |
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Definition
| Tiny dark pouches at the junction of intestines and anus; temporary storage of waste |
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Term
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Definition
| Fissure along midline of oral surface; housinf for tube feet; used to pry open shells of bivalves |
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