Chapter_33b - Biology, 7e (Campbell) Chapter 33:...

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Biology, 7e (Campbell) Chapter 33: Invertebrates Chapter Questions 1) Which molluscan class includes members that undergo embryonic torsion? A) Polyplacophora B) Bivalvia C) Cephalopoda D) Gastropoda E) All molluscan classes have this characteristic. 2) If a lung were to be found in a mollusc, where would it be located? A) mantle cavity B) coelom C) foot D) visceral mass E) excurrent siphon 3) A terrestrial mollusc without a shell belongs to which class? A) Gastropoda B) Polyplacophora C) Bivalvia D) Cephalopoda E) Arthropoda 4) Which molluscan class includes chitons? A) Polyplacophora B) Bivalvia C) Cephalopoda D) Gastropoda E) both C and D 5) A radula is present in members of which class(es)? A) Gastropoda B) Polyplacophora C) Bivalvia D) A and B only E) A, B, and C 6) While snorkeling, a student observes an active marine animal that has a series of muscular tentacles bearing suckers associated with its head. Segmentation is not observed, but a pair of large, well- developed eyes is evident. The student is observing an animal belonging to which class? A) Gastropoda B) Cephalopoda C) Polyplacophora D) Polychaeta E) Bivalvia
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7) Which of the following is not found in annelids? A) a hydrostatic skeleton B) segmentation C) a digestive system with separate mouth and anus D) a closed circulatory system E) a cuticle made of chitin Match the descriptions to the correct annelid class(es) from the list below. Each choice may be used once, more than once, or not at all. A. Oligochaeta B. Polychaeta C. Hirudinea D. two of the above E. all of the above 8) have parapodia 9) many are parasites 10) have segmented bodies 11) make castings that are agriculturally important 12) name indicates the relative number of bristles its members have 13) some members release an anticoagulate that is of medical significance 14) An arthropod has all the following characteristics except A) protostome development. B) bilateral symmetry.
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Chapter_33b - Biology, 7e (Campbell) Chapter 33:...

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