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invertebrates charac
lecture3 test 3
| Question | Answer |
|---|---|
| without a backbone | invertebrate |
| two ways to classify invertebrates | parazoa and eumetazoa |
| not tissue; no gustrulation; no folding inward; "beside the animal" | parazoa |
| have tissue and gastrulation | eumetazoa |
| example sponges | parazoa |
| example everything but sponges | emetazoa |