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15 Cards in this Set
- Front
- Back
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A body cavity that forms between germ layers
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coelom
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acoelomate
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no body cavity between germ layers
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body symmetry is found in all invertebrates except
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sponges
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invertebrates that exhibit radial symmetry are
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cnnidarians and echinoderms
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cephalization
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concentration of sense organs and nerve cells in the front of the body
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if an animal has no coelom and no cephalization it is either a
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sponge or cnidarian
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order in which major invertebrate features evolved
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multicellularity-->tissues-->3 germ layers-->coelom
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eyespots of flatworms
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detect the presence of light
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endoskeleton
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support structure located inside the body
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the notochord is a characteristic of
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all chordates
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largest living group of chordates
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fish
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unlike plant cells, animal cells do not have
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cell walls
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if a cell contains a nucleus and membrane bound organelles, it must be
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eukaryotic
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animals are not
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autotrophic
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an animal that has distinct left and right sides shows
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bilateral symmetry
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