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Chapter 27 – Worms and Mollusks A Topic 1 Topic 2 Topic 3 Topic 4 Topic 5 $100 $100 $100 $100 $100 $200 $200 $200 $200 $200 $300 $300 $300 $300 $300 $400 $400 $400 $400 $400 $500 $500 $500 $500 $500 FINAL ROUND Topic 1: $100 Question The simplest animals to have three embryonic germ layers. Bilateral symmetry, and cephalization are the ___________. a. nematodes b. roundworms c. flatworms d. leeches ANSWER BACK TO GAME Topic 1: $100 Answer The simplest animals to have three embryonic germ layers. Bilateral symmetry, and cephalization are the ___________. a. nematodes b. roundworms c. flatworms d. leeches BACK TO GAME Topic 1: $200 Question Some snails and other mollusks never seem to develop any form of ___________. a. mucus b. polychaetes c. trochophores d. cancer ANSWER BACK TO GAME Topic 1: $200 Answer Some snails and other mollusks never seem to develop any form of ___________. a. mucus b. polychaetes c. trochophores d. cancer BACK TO GAME Topic 1: $300 Question The type of embryonic tissue that lines a true coelom is called _________. a. mesoderm b. gastroderm c. endoderm d. ectoderm ANSWER BACK TO GAME Topic 1: $300 Answer The type of embryonic tissue that lines a true coelom is called _________. a. mesoderm b. gastroderm c. endoderm d. ectoderm BACK TO GAME Topic 1: $400 Question Many free-living roundworms are __________, which are animals that eat other animals. a. herbivores b. carnivores c. detritivores d. bacteria ANSWER BACK TO GAME Topic 1: $400 Answer Many free-living roundworms are __________, which are animals that eat other animals. a. herbivores b. carnivores c. detritivores d. bacteria BACK TO GAME Topic 1: $500 Question Roundworms have a tube-within-a-tube digestive tract with two openings—a mouth and a(an) ___________. a. gut b. anus c. belly d. foot ANSWER BACK TO GAME Topic 1: $500 Answer Roundworms have a tube-within-a-tube digestive tract with two openings—a mouth and a(an) ___________. a. gut b. anus c. belly d. foot BACK TO GAME Topic 2: $100 Question The primary host of Schistosoma mansoni is a(an) a. flatworm b. sheep c. human d. dog ANSWER BACK TO GAME Topic 2: $100 Answer The primary host of Schistosoma mansoni is a(an) a. flatworm b. sheep c. human d. dog BACK TO GAME Topic 2: $200 Question A filter-feeding annelid fans water through tubelike burrows and catches food particles in a ____________ bag. a. shopping b. filter c. mucus d. woven silk ANSWER BACK TO GAME Topic 2: $200 Answer A filter-feeding annelid fans water through tubelike burrows and catches food particles in a ____________ bag. a. shopping b. filter c. mucus d. woven silk BACK TO GAME Topic 2: $300 Question The foot of most cephalopods is divided into eight or more arms called ____________. a. sporangia b. tentacles c. tail fibers d. toes ANSWER BACK TO GAME Topic 2: $300 Answer The foot of most cephalopods is divided into eight or more arms called ____________. a. sporangia b. tentacles c. tail fibers d. toes BACK TO GAME Topic 2: $400 Question The shell of most mollusks is composed of ____________, which is secreted by glands in the mantle. a. chitin b. proteins c. calcium carbonate d. sodium bicarbonate ANSWER BACK TO GAME Topic 2: $400 Answer The shell of most mollusks is composed of ____________, which is secreted by glands in the mantle. a. chitin b. proteins c. calcium carbonate d. sodium bicarbonate BACK TO GAME Topic 2: $500 Question A marine animal that has a(an) _______________ larva and a true coelom could be either an annelid or a mollusk—it is impossible to classify it without further information. a. polychaete b. trochophore c. carnivorous ANSWER d. prokaryotic BACK TO GAME Topic 2: $500 Answer A marine animal that has a(an) _______________ larva and a true coelom could be either an annelid or a mollusk—it is impossible to classify it without further information. a. polychaete b. trochophore c. carnivorous d. prokaryotic BACK TO GAME Topic 3: $100 Question Many aquatic mollusks have a freeswimming larval stage, called a(an) ___________ larva. a. trochophore b. carnivorous c. herbivorous d. prokaryotic ANSWER BACK TO GAME Topic 3: $100 Answer Many aquatic mollusks have a freeswimming larval stage, called a(an) ___________ larva. a. trochophore b. carnivorous c. herbivorous d. prokaryotic BACK TO GAME Topic 3: $200 Question Bottom-dwelling annelids from the class __________ are important in marine ecosystems and form part of the diets of fishes and crustaceans. a. Polychaeta b. Oligochaeta c. SandsofIwoJimaeta d. Chondrichthaeta ANSWER BACK TO GAME Topic 3: $200 Answer Bottom-dwelling annelids from the class __________ are important in marine ecosystems and form part of the diets of fishes and crustaceans. a. Polychaeta b. Oligochaeta c. SandsofIwoJimaeta d. Chondrichthaeta BACK TO GAME Topic 3: $300 Question Annelids have a(an) ________ circulatory system, in which blood is contained in a network of blood vessels. a. open b. semi-tubular c. nephridic d. closed ANSWER BACK TO GAME Topic 3: $300 Answer Annelids have a(an) ________ circulatory system, in which blood is contained in a network of blood vessels. a. open b. semi-tubular c. nephridic d. closed BACK TO GAME Topic 3: $400 Question Sandworms and bloodworms are members of the class of marine annelids called ____________. a. oligochaetes b. polychaetes c. sandsofIwoJimaetes d. chondrichthaetes ANSWER BACK TO GAME Topic 3: $400 Answer Sandworms and bloodworms are members of the class of marine annelids called ____________. a. oligochaetes b. polychaetes c. sandsofIwoJimaetes d. chondrichthaetes BACK TO GAME Topic 3: $500 Question The larvae of the roundworm species named __________ form cycts in the host’s muscle tissue. a. Trichinella b. Schistomyosin c. leech d. night crawler ANSWER BACK TO GAME Topic 3: $500 Answer The larvae of the roundworm species named __________ form cycts in the host’s muscle tissue. a. Trichinella b. Schistomyosin c. leech d. night crawler BACK TO GAME Topic 4: $100 Question How do the body systems of parasitic roundworms generally compare to those of free-living roundworms? a. They are more complex. b. They are simpler. c. Parasitic roundworms lack a reproductive system. d. Free-living roundworms have an internal ANSWER transport system. BACK TO GAME Topic 4: $100 Answer How do the body systems of parasitic roundworms generally compare to those of free-living roundworms? a. They are more complex. b. They are simpler. c. Parasitic roundworms lack a reproductive system. d. Free-living roundworms have an internal transport system. BACK TO GAME Topic 4: $200 Question Which of the following is evidence that mollusks and annelids may be closely related? a. Both groups have setae. b. Both groups have a trochophore larva. c. Neither group has lungs. d. Both groups include both marine and terrestrial animals. ANSWER BACK TO GAME Topic 4: $200 Answer Which of the following is evidence that mollusks and annelids may be closely related? a. Both groups have setae. b. Both groups have a trochophore larva. c. Neither group has lungs. d. Both groups include both marine and terrestrial animals. BACK TO GAME Topic 4: $300 Question A type of worm that is an external parasite is the a. tapeworm. b. polychaete. c. leech. d. earthworm. ANSWER BACK TO GAME Topic 4: $300 Answer A type of worm that is an external parasite is the a. tapeworm. b. polychaete. c. leech. d. earthworm. BACK TO GAME Topic 4: $400 Question What causes the disease called elephantiasis? a. flukes b. ascarid worms c. hookworms d. filarial worms ANSWER BACK TO GAME Topic 4: $400 Answer What causes the disease called elephantiasis? a. flukes b. ascarid worms c. hookworms d. filarial worms BACK TO GAME Topic 4: $500 Question Earthworms are oligochaetes because they a. have just a few setae on each segment. b. reproduce sexually. c. have bodies made up of identical segments. d. are parasitic. ANSWER BACK TO GAME Topic 4: $500 Answer Earthworms are oligochaetes because they a. have just a few setae on each segment. b. reproduce sexually. c. have bodies made up of identical segments. d. are parasitic. BACK TO GAME Topic 5: $100 Question Earthworms benefit gardeners because their tunnels provide passageways for a. leeches. b. polychaetes. c. plant roots and water. d. planarians. ANSWER BACK TO GAME Topic 5: $100 Answer Earthworms benefit gardeners because their tunnels provide passageways for a. leeches. b. polychaetes. c. plant roots and water. d. planarians. BACK TO GAME Topic 5: $200 Question Why is an open circulatory system adequate for a bivalve, such as a clam, but not for a cephalopod, such as a squid? a. Bivalves are largely sedentary, while squids move quickly. b. Bivalves have relatively high oxygen demands. c. Cephalopods have relatively low oxygen demands. d. Bivalves are filter-feeders, and cephalopods are plant eaters. ANSWER BACK TO GAME Topic 5: $200 Answer Why is an open circulatory system adequate for a bivalve, such as a clam, but not for a cephalopod, such as a squid? a. Bivalves are largely sedentary, while squids move quickly. b. Bivalves have relatively high oxygen demands. c. Cephalopods have relatively low oxygen demands. d. Bivalves are filter-feeders, and cephalopods are plant eaters. BACK TO GAME Topic 5: $300 Question Mollusks have a. a pseudocoelom. b. a true coelom. c. a body cavity between the ectoderm and mesoderm. d. no body cavity. ANSWER BACK TO GAME Topic 5: $300 Answer Mollusks have a. a pseudocoelom. b. a true coelom. c. a body cavity between the ectoderm and mesoderm. d. no body cavity. BACK TO GAME Topic 5: $400 Question The most active mollusks are the a. bivalves. b. cephalopods. c. gastropods. d. nudibranchs. ANSWER BACK TO GAME Topic 5: $400 Answer The most active mollusks are the a. bivalves. b. cephalopods. c. gastropods. d. nudibranchs. BACK TO GAME Topic 5: $500 Question A pond snail is an example of a(an) a. roundworm. b. flatworm. c. annelid. d. gastropod. ANSWER BACK TO GAME Topic 5: $500 Answer A pond snail is an example of a(an) a. roundworm. b. flatworm. c. annelid. d. gastropod. BACK TO GAME FINAL ROUND Question Question: a. Choice 1 b. Choice 2 c. Choice 3 d. Choice 4 ANSWER BACK TO GAME FINAL ROUND Answer Question: a. Choice 1 b. Choice 2 c. Choice 3 (correct answer) d. Choice 4 BACK TO GAME