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A) bivalves B) cephalopods C) gastropods D) chiton 2
A) planula B) morula C) veliger D) trochophore 3
A) chiton B) gastropod C) cephalopod D) none of the above 4
A) coelomates B) acoelomates C) pseudocoelomates D) all of the above 5
A) anterior B) dorsal surface C) left and right sections are mirror images D) all sections are mirror images 6
A) snails B) scallops C) oysters D) giant clams E) whelks 7
A) two way B) u-shaped C) straight D) coiled E) lacking 8
A) suckers B) internal segmentation C) clitellum D) parapodia E) anticoagulent 9
A) reproduction B) locomotion C) respiration D) circulation E) food getting 10
A) 12 B) 16 C) 8 D) 10 E) 80-90 11
A) nephrostome B) flame cell C) operculum D) zooecium E) parapodium 12
A) separate sexed B) hermaphroditic but not self-fertilizing C) parthenogenic D) hermaphroditic and self-fertilizing E) none of the above 13
A) rostrum B) prorostrum C) osculum D) operculum E) rellium 14
A) polychaete B) brachiopod C) snail D) oyster E) octopus 15
A) be closed slightly B) be lost C) be closed tightly D) open or close in response to waves and currents E) none of the above 16
A) a coelom B) parapodia C) setae D) permanent gonads E) palps 17
A) tentacles B) mantle C) foot D) lungs E) gills 18
A) naiad B) trochophore C) planula D) veliger E) oligophore 19
A) parasites B) commensuls C) predators D) saprophytes E) filter feeders 20
A) slug B) squid C) chiton D) nudibranch E) clam 21
A) cilia B) parapodia C) palps D) setae E) flagella 22
A) brachiopods B) snails C) bryozoans D) phornids E) slugs 23
A) a trochophore larva B) a closed circulatory system C) segmentation D) the number of heart chambers E) a marine habitat 24
A) cirri B) tentacles C) setae D) a zooecium E) an operculum 25
A) reproduction B) locomotion C) feeding D) excretion E) circulation 26
A) Both have a complete digestive tract. B) Both have a body cavity of one type or another. C) Both have a closed circulatory system. D) Flatworms are unsegmented, whereas annelids are segmented. E) b, c, and d are true. 27
A) Annelida B) protostomes C) leeches D) Oligochaeta E) polychaetes 28
A) circulation B) movement C) organ function D) all of the above E) none of the above 29
A) highly specialized organs B) a muscular foot for movement C) a protective shell D) all of the above E) none of the above 30
not a characteristic shared by all mollusks?A) a mantle B) gills C) a radula D) a coelom E) All of the above are shared by mollusks. 31
A) rotifers B) cephalopods C) arthropods D) echinoderms E) annelids 32
A) a mantle B) tentacles C) a radula D) torsion during development E) an external shell 33
A) nephridia B) closed circulatory system C) segmentation D) pseudocoelom E) setae 34
A) polychaetes B) gastropods C) nematods D) arthropods E) cephalopods 35
A) cephalization B) coelom C) segmentation D) lophophore E) deuterostome development
2002 McGraw-Hill Higher Education