SOLVED

31.Sand dollars, sea stars, sea cucumbers, and sea urchins all belong to the phylum _____. A. Lophophorates B. Rotirfera C. Chordata D. Echinodermata E. Arthropoda 32.All of the following are correct about protostomes except: A. The developmental fate of each cell in the embryo is fixed when that cell first appears. B. The blastopore becomes the animal’s anus. C. The mesoderm splits to form the coelom. D. Embryonic cells cleave in a spiral pattern. 33.Heartworm infection in dogs and cats are caused by a parasitic _____ that infests the heart of the animal. A. flatworm B. rotifer C. roundworm D. segmented worm E. echinoderm 34.Trichinosis is a ________ -caused disease can be acquired by eating undercooked ________. A. roundworm; pork B. flatworm; chicken C. rotifer; hamburger D. segmented worm; eggs E. roundworm; chicken 35.You went scuba diving and bring back to the lab an animal that has bilateral symmetry, a true coelom, and is a deuterostome. What animal could this be? A. Octopus B. Snail C. Rotifer D. Sea cucumber E. Jellyfish 36.Put the following terms in order from first to last in development. A. morula ? blastula ? gastrula ? zygote B. zygote ? morula ? gastrula ? blastula C. zygote ? morula ? blastula ? gastrula D. blastula ? zygote ? gastrula ? morula  Â