E. A, C, and D only 22. Lophophorates include A. agnathans. Echinodermata A. have an anus formed from the blastopore B. have indeterminate cleavage C. have enterocoelous coelom development D. all of the above E. A and C only 24. If you wanted to see opercula, you should look at A. chondrichthyes. A whale is a A. fish B. mammal C. marsupial D. monotreme E. B and D 26.
Fish jaws develop from A. the notochord.
C. nose bones. E. the structures supporting the pharyngeal gill slits. A. Agnatha B. Cephalochordata C. Aves D. Urochordata E. B and D 28. Sea urchins are in the same phylum as A. hermit crabs. B. horseshoe crabs.