Bio1151 Chapter 33 Invertebrates
  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: