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8 Cards in this Set
- Front
- Back
what are cnidarians?
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soft-bodied animals with stinging tentacles arranged in circles around their mouth; they exhibit radial symmetry and have specialized cells/tissues
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gastrovasular cavity
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digestive cavity jn cnidarians with only one opening
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what are the germ layers of cnidarians?
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epidermis (outside) , mesoglea( thick:medusae/thin:polyp ), gastroderm (lines GVC)
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nematocysts
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stinging structure on the tentacles of cnidarians; used to kill or paralyze prey
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statocysts
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helps organism determine which way is up
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ocelli
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eyespots, detects presence of light
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budding
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asexual reproduction. swelling on the side, eventually grows into a complete polyp
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what are the three classes of cnidaria and examples?
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hydrozoa: hydras
anthozoa: sea anemones and coral scyphozoa: true jellies |