Unit 5: The Evolutionary History of Diversity Extras  Study Guide


Chapter 33 9 Review
  1. Invertebrates do not have a , and account for 95% of known animal species.
     
  2. Phyla and are the multicellular sponges (formerly Porifera) that lack true tissues.
     
  3. Phylum belongs in the clade with true tissues called .
     
  4. Most Eumetazoa belong to the clade and exhibit symmetry and triploblastic embryonic development.
     
  5. Phylum are flatworms with a gastrovascular cavity.
     
  6. Phylum are roundworms with a .
     
  7. Phylum are soft-bodied animals.
     
  8. Phylum are segmented worms with a true .
     
  9. Phylum have bodies.
     
  10. Phylum are .
     
    Summary:
     
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