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8 Cards in this Set
- Front
- Back
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no layers mass of cells |
Porifera |
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2 tissue layers radially symmetrical cnidocytes |
Cnidaria |
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bilateral symmetry 3 tissue layers cephalization flat |
Platyhelminthes |
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3 tissue layers pseudocoelom digestive system w/ different openings |
Nematoda |
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softbodied coelomates bilateral symmetry most have shell 3 part body plan |
Mollusca |
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segmented setae |
Annelida |
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segmented joint appendages hard exoskeleton |
Arthopoda |
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internal skeleton 5-part radial symmetry breathe through skin water-vascular system |
Echinoderma |
