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Chapter 27 - Worms and Mollusks

This chapter explores the characteristics and behaviors of worms and mollusks, including flatworms, annelids, and mollusks. Topics include the anatomy, reproduction, and ecological roles of these organisms.

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Chapter 27 - Worms and Mollusks

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  1. Chapter 27 – Worms and Mollusks B 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

  2. Topic 1:$100 Question Food enters a flatworm’s body cavity through a muscular tube called a a. flame cell. b. pharynx. c. ganglion. d. coelom. ANSWER BACK TO GAME

  3. Topic 1:$100 Answer Food enters a flatworm’s body cavity through a muscular tube called a a. flame cell. b. pharynx. c. ganglion. d. coelom. BACK TO GAME

  4. Topic 1:$200 Question An adult tapeworm uses its scolex to a. store sperm. b. digest food. c. store fertilized eggs. d. attach itself to the intestinal wall of its host. ANSWER BACK TO GAME

  5. Topic 1:$200 Answer An adult tapeworm uses its scolex to a. store sperm. b. digest food. c. store fertilized eggs. d. attach itself to the intestinal wall of its host. BACK TO GAME

  6. Topic 1:$300 Question Many flatworms can detect changes in the amount of light in their environment using groups of cells called a. flame cells. b. nerve cords. c. ganglia. d. eyespots. ANSWER BACK TO GAME

  7. Topic 1:$300 Answer Many flatworms can detect changes in the amount of light in their environment using groups of cells called a. flame cells. b. nerve cords. c. ganglia. d. eyespots. BACK TO GAME

  8. Topic 1:$400 Question Most free-living flatworms are a. parasites. b. flukes. c. members of the class Cestoda. d. hermaphrodites. ANSWER BACK TO GAME

  9. Topic 1:$400 Answer Most free-living flatworms are a. parasites. b. flukes. c. members of the class Cestoda. d. hermaphrodites. BACK TO GAME

  10. Topic 1:$500 Question What conditions could be expected in an area where large numbers of mud-dwelling, filter-feeding, marine annelids are found? a. abundance of roundworms b. low bacteria population c. abundance of algae d. compacted muddy bottom ANSWER BACK TO GAME

  11. Topic 1:$500 Answer What conditions could be expected in an area where large numbers of mud-dwelling, filter-feeding, marine annelids are found? a. abundance of roundworms b. low bacteria population c. abundance of algae d. compacted muddy bottom BACK TO GAME

  12. Topic 2:$100 Question The muscular extension of a leech that penetrates the tissue of its host is the a. septum. b. radula. c. proboscis. d. ganglion. ANSWER BACK TO GAME

  13. Topic 2:$100 Answer The muscular extension of a leech that penetrates the tissue of its host is the a. septum. b. radula. c. proboscis. d. ganglion. BACK TO GAME

  14. Topic 2:$200 Question Which of these animals has a true coelom? a. filarial worm b. tapeworm c. planarian d. leech ANSWER BACK TO GAME

  15. Topic 2:$200 Answer Which of these animals has a true coelom? a. filarial worm b. tapeworm c. planarian d. leech BACK TO GAME

  16. Topic 2:$300 Question Filter-feeding bivalves can be used to monitor the environmental health of a habitat because a. the bivalves reproduce rapidly in polluted water. b. the bivalves live near deep-sea vents. c. some bivalves never get cancer. d. the bivalves concentrate pollutants and microorganisms in their tissues. ANSWER BACK TO GAME

  17. Topic 2:$300 Answer Filter-feeding bivalves can be used to monitor the environmental health of a habitat because a. the bivalves reproduce rapidly in polluted water. b. the bivalves live near deep-sea vents. c. some bivalves never get cancer. d. the bivalves concentrate pollutants and microorganisms in their tissues. BACK TO GAME

  18. Topic 2:$400 Question In earthworms, inability to produce offspring might be associated with a. lack of a true coelom. b. the inability of a worm to fertilize its own eggs. c. a malfunction of the nephridia. d. a malfunction of the clitellum. ANSWER BACK TO GAME

  19. Topic 2:$400 Answer In earthworms, inability to produce offspring might be associated with a. lack of a true coelom. b. the inability of a worm to fertilize its own eggs. c. a malfunction of the nephridia. d. a malfunction of the clitellum BACK TO GAME

  20. Topic 2:$500 Question In an earthworm, the dorsal blood vessel functions like a heart because it a. receives blood from gills. b. connects to ring vessels. c. connects to sinuses. d. contracts and helps pump blood. ANSWER BACK TO GAME

  21. Topic 2:$500 Answer In an earthworm, the dorsal blood vessel functions like a heart because it a. receives blood from gills. b. connects to ring vessels. c. connects to sinuses. d. contracts and helps pump blood. BACK TO GAME

  22. Topic 3:$100 Question The body of an annelid has a. an external shell. b. segments. c. stinging tentacles. d. a backbone. ANSWER BACK TO GAME

  23. Topic 3:$100 Answer The body of an annelid has a. an external shell. b. segments. c. stinging tentacles. d. a backbone. BACK TO GAME

  24. Topic 3:$200 Question Which characteristic would allow you to differentiate a nautilus from another type of mollusk? a. It has a shell. b. It has a single foot. c. It has a mantle. d. It has up to 90 tentacles. ANSWER BACK TO GAME

  25. Topic 3:$200 Answer Which characteristic would allow you to differentiate a nautilus from another type of mollusk? a. It has a shell. b. It has a single foot. c. It has a mantle. d. It has up to 90 tentacles. BACK TO GAME

  26. Topic 3:$300 Question Some mollusks are detritivores. Their main source of food comes from a. living animals. b. decaying plant and animal remains. c. living plants. d. bacteria in the muddy bottom. ANSWER BACK TO GAME

  27. Topic 3:$300 Answer Some mollusks are detritivores. Their main source of food comes from a. living animals. b. decaying plant and animal remains. c. living plants. d. bacteria in the muddy bottom. BACK TO GAME

  28. Topic 3:$400 Question The tubelike structure through which water enters and leaves a mollusk’s body is the a. siphon. b. sinus. c. coelom. d. mantle cavity. ANSWER BACK TO GAME

  29. Topic 3:$400 Answer The tubelike structure through which water enters and leaves a mollusk’s body is the a. siphon. b. sinus. c. coelom. d. mantle cavity. BACK TO GAME

  30. Topic 3:$500 Question The spade-shaped burrowing structure of one group of mollusks and the tentacles of another group are both modifications of the a. mantle. b. shell. c. visceral mass. d. foot. ANSWER BACK TO GAME

  31. Topic 3:$500 Answer The spade-shaped burrowing structure of one group of mollusks and the tentacles of another group are both modifications of the a. mantle. b. shell. c. visceral mass. d. foot. BACK TO GAME

  32. Topic 4:$100 Question Which of the following correctly pairs the class of mollusks with an example of an animal in that class? a. Cephalopoda/land slug b. Bivalvia/nudibranch c. Cephalopoda/cuttlefish d. Gastropoda/clam ANSWER BACK TO GAME

  33. Topic 4:$100 Answer Which of the following correctly pairs the class of mollusks with an example of an animal in that class? a. Cephalopoda/land slug b. Bivalvia/nudibranch c. Cephalopoda/cuttlefish d. Gastropoda/clam BACK TO GAME

  34. Topic 4:$200 Question The thin layer of tissue that covers a mollusk’s body is called the a. mantle. b. foot. c. shell. d. visceral mass. ANSWER BACK TO GAME

  35. Topic 4:$200 Answer The thin layer of tissue that covers a mollusk’s body is called the a. mantle. b. foot. c. shell. d. visceral mass. BACK TO GAME

  36. Topic 4:$300 Question Some flatworms have clusters of nerve cells that control the nervous system. Each cluster is called a(an) a. brain. b. eyespot. c. ganglion. d. flame cell. ANSWER BACK TO GAME

  37. Topic 4:$300 Answer Some flatworms have clusters of nerve cells that control the nervous system. Each cluster is called a(an) a. brain. b. eyespot. c. ganglion. d. flame cell. BACK TO GAME

  38. Topic 4:$400 Question Free-living flatworms, most of which live in marine environments or fresh water, are a. tapeworms. b. roundworms. c. turbellarians. d. flukes. ANSWER BACK TO GAME

  39. Topic 4:$400 Answer Free-living flatworms, most of which live in marine environments or fresh water, are a. tapeworms. b. roundworms. c. turbellarians. d. flukes. BACK TO GAME

  40. Topic 4:$500 Question An intermediate host is an organism in which a parasite a. reproduces asexually. b. reproduces sexually. c. causes tissue decay. d. clogs blood vessels. ANSWER BACK TO GAME

  41. Topic 4:$500 Answer An intermediate host is an organism in which a parasite a. reproduces asexually. b. reproduces sexually. c. causes tissue decay. d. clogs blood vessels. BACK TO GAME

  42. 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

  43. 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

  44. 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

  45. 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

  46. Topic 5:$300 Question In a tapeworm, both male and female reproductive organs are contained in each mature a. scolex. b. cyst. c. egg. d. proglottid. ANSWER BACK TO GAME

  47. Topic 5:$300 Answer In a tapeworm, both male and female reproductive organs are contained in each mature a. scolex. b. cyst. c. egg. d. proglottid. BACK TO GAME

  48. Topic 5:$400 Question Roundworms have a digestive system a. that branches into multiple passages. b. within a true coelom. c. with two openings. d. with one opening. ANSWER BACK TO GAME

  49. Topic 5:$400 Answer Roundworms have a digestive system a. that branches into multiple passages. b. within a true coelom. c. with two openings. d. with one opening. BACK TO GAME

  50. Topic 5:$500 Question A pseudocoelom forms between the mesoderm and a. endoderm. b. ectoderm. c. true coelom. d. none of the above. ANSWER BACK TO GAME

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