Cnidarian (Coelenterates) Vocab
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Last updated 2:44 AM on 11/11/22
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14 Terms
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Epidermis
Outer layer of cells of a body wall
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Gastrodermis
The inner layer of cells lining the gastrovascular cavity
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Mesoglea
A gel-like matrix between the epidermis and gastrodermis
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Cnidocytes
Stinging cells on tentacles that produce cnida
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Cnida
Organelle characteristic of cnidarea used for defense, food gathering and attachment
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Polyp
Hydroid, sessile stage in the life cycle
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Medusa
Jellyfish, free swimming stage in the life cycle
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Nematocyst
Stinging cells with venom
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Gastrovascular cavity
Large central cavity that digests food with a single opening as the mouth and anus
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Hydrostatic skeleton
Skeleton supported by body cavity fluids that are confined by the body wall
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Planula
Ciliated, free-swimming larva that develops following reproduction and metamorphoses into a polyp
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Statocyst
Gravity sensing cells
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Pedal disk
The surface opposite to the mouth of a sea anemone
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Protandry
The condition in monoecious organisms that male gonads mature before female gonads to prevent self-fertilization
Note 
Flashcards (22)