Chapter 26 – Sponges and Cnidarians B

1. Chapter 26 – Sponges and Cnidarians 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 • The body symmetry of a cnidarian is • a. radial in the medusa and bilateral in the polyp stages. • b. radial in both the medusa and the polyp sages. • c. bilateral in both the medusa and polyp stages. • d. bilateral in the medusa stage and radial in the polyp stage. ANSWER BACK TO GAME

3. Topic 1:$100 Answer • The body symmetry of a cnidarian is • a. radial in the medusa and bilateral in the polyp stages. • b. radial in both the medusa and the polyp sages. • c. bilateral in both the medusa and polyp stages. • d. bilateral in the medusa stage and radial in the polyp stage. BACK TO GAME

4. Topic 1:$200 Question • How can an extremely diverse coral reef live in water that contains few nutrients? • a. corals obtain nutrients from the runoff from land. • b. reef-building corals live symbiotically with photosynthetic algae. • c. corals recycle nutrients. • d. fishes maintain the ecological balance of coral reefs. ANSWER BACK TO GAME

5. Topic 1:$200 Answer • How can an extremely diverse coral reef live in water that contains few nutrients? • a. corals obtain nutrients from the runoff from land. • b. reef-building corals live symbiotically with photosynthetic algae. • c. corals recycle nutrients. • d. fishes maintain the ecological balance of coral reefs. BACK TO GAME

6. Topic 1:$300 Question • Unlike plant cells, animal cells do not have • a. nuclei. • b. organelles. • c. cell walls. • d. cell membranes ANSWER BACK TO GAME

7. Topic 1:$300 Answer • Unlike plant cells, animal cells do not have • a. nuclei. • b. organelles. • c. cell walls. • d. cell membranes BACK TO GAME

8. Topic 1:$400 Question • A blastula is a stage in the development of an embryo that consists of • a. a solid ball of cells. • b. a hollow ball of cells. • c. a flat sheet of cells. • d. a folded sheet of cells. ANSWER BACK TO GAME

9. Topic 1:$400 Answer • A blastula is a stage in the development of an embryo that consists of • a. a solid ball of cells. • b. a hollow ball of cells. • c. a flat sheet of cells. • d. a folded sheet of cells. BACK TO GAME

10. Topic 1:$500 Question • Some biologists believe that sponges evolved • a. from seed plants. • b. as the result of asexual reproduction. • c. independently of all other animals. • d. from hydras. ANSWER BACK TO GAME

11. Topic 1:$500 Answer • Some biologists believe that sponges evolved • a. from seed plants. • b. as the result of asexual reproduction. • c. independently of all other animals. • d. from hydras. BACK TO GAME

12. Topic 2:$100 Question • Organisms that spend their entire adult lives attached to one spot are said to be • a. flagellated. • b. symmetric. • c. heterotrophic. • d. sessile. ANSWER BACK TO GAME

13. Topic 2:$100 Answer • Organisms that spend their entire adult lives attached to one spot are said to be • a. flagellated. • b. symmetric. • c. heterotrophic. • d. sessile. BACK TO GAME

14. Topic 2:$200 Question • The upper side of an organism is its • a. dorsal side. • b. ventral side. • c. anterior side. • d. posterior side. ANSWER BACK TO GAME

15. Topic 2:$200 Answer • The upper side of an organism is its • a. dorsal side. • b. ventral side. • c. anterior side. • d. posterior side. BACK TO GAME

16. Topic 2:$300 Question • Muscle tissue exerts force by becoming • a. cooler. • b. warmer. • c. longer. • d. shorter. ANSWER BACK TO GAME

17. Topic 2:$300 Answer • Muscle tissue exerts force by becoming • a. cooler. • b. warmer. • c. longer. • d. shorter. BACK TO GAME

18. Topic 2:$400 Question • Which of the three cell layers in animal embryos gives rise to muscles and much of the circulatory, reproductive, and excretory systems? • a. endoderm • b. mesoderm • c. protostome • d. ectoderm ANSWER BACK TO GAME

19. Topic 2:$400 Answer • Which of the three cell layers in animal embryos gives rise to muscles and much of the circulatory, reproductive, and excretory systems? • a. endoderm • b. mesoderm • c. protostome • d. ectoderm BACK TO GAME

20. Topic 2:$500 Question • Which is NOT associated with sponges? • a. choanocytes • b. medusa • c. spicules • d. gemmules ANSWER BACK TO GAME

21. Topic 2:$500 Answer • Which is NOT associated with sponges? • a. choanocytes • b. medusa • c. spicules • d. gemmules BACK TO GAME

22. Topic 3:$100 Question • An animal that ha distinct left and right sides shows • a. radial symmetry. • b. bilateral symmetry. • c. segmentation. • d. Several planes of symmetry. ANSWER BACK TO GAME

23. Topic 3:$100 Answer • An animal that ha distinct left and right sides shows • a. radial symmetry. • b. bilateral symmetry. • c. segmentation. • d. Several planes of symmetry. BACK TO GAME

24. Topic 3:$200 Question • Many small aquatic organisms move oxygen and carbon dioxide through their skin by the process of • a. extracellular digestion. • b. muscular contractions. • c. cephalization. • d. diffusion. ANSWER BACK TO GAME

25. Topic 3:$200 Answer • Many small aquatic organisms move oxygen and carbon dioxide through their skin by the process of • a. extracellular digestion. • b. muscular contractions. • c. cephalization. • d. diffusion. BACK TO GAME

26. Topic 3:$300 Question • When an animal’s environment changes, sexual reproduction improves a species’ ability to • a. react. • b. evolve. • c. increase its numbers rapidly. • d. produce genetically identical offspring. ANSWER BACK TO GAME

27. Topic 3:$300 Answer • When an animal’s environment changes, sexual reproduction improves a species’ ability to • a. react. • b. evolve. • c. increase its numbers rapidly. • d. produce genetically identical offspring. BACK TO GAME

28. Topic 3:$400 Question • A parasite is a type of • a. vertebrate. • b. detritivore. • c. algae. • d. symbiont. ANSWER BACK TO GAME

29. Topic 3:$400 Answer • A parasite is a type of • a. vertebrate. • b. detritivore. • c. algae. • d. symbiont. BACK TO GAME

30. Topic 3:$500 Question • The benefit of sponge’s producing gemmules is that gemmules • a. are a form of sexual reproduction. • b. help to filter food for the sponge. • c. defend the sponge against predators. • d. allow the sponge to survive long periods of harsh conditions. ANSWER BACK TO GAME

31. Topic 3:$500 Answer • The benefit of sponge’s producing gemmules is that gemmules • a. are a form of sexual reproduction. • b. help to filter food for the sponge. • c. defend the sponge against predators. • d. allow the sponge to survive long periods of harsh conditions. BACK TO GAME

32. Topic 4:$100 Question • In jellyfish • a. both polyp and medusa are diploid. • b. both polyp and medusa are haploid. • c. the medusa is diploid and the polyp is haploid. • d. the medusa is haploid and the polyp is diploid. ANSWER BACK TO GAME

33. Topic 4:$100 Answer • In jellyfish • a. both polyp and medusa are diploid. • b. both polyp and medusa are haploid. • c. the medusa is diploid and the polyp is haploid. • d. the medusa is haploid and the polyp is diploid. BACK TO GAME

34. Topic 4:$200 Question • The nerve cells of cnidarians make up a(an) • a. brain. • b. hydrostatic skeleton. • c. nerve net. • d. ocelli. ANSWER BACK TO GAME

35. Topic 4:$200 Answer • The nerve cells of cnidarians make up a(an) • a. brain. • b. hydrostatic skeleton. • c. nerve net. • d. ocelli. BACK TO GAME

36. Topic 4:$300 Question • Coral bleaching is a serious ecological threat because it • a. causes corals to overpopulate the area. • b. destroys the beauty of a coral reef. • c. pollutes the water. • d. causes corals to die. ANSWER BACK TO GAME

37. Topic 4:$300 Answer • Coral bleaching is a serious ecological threat because it • a. causes corals to overpopulate the area. • b. destroys the beauty of a coral reef. • c. pollutes the water. • d. causes corals to die. BACK TO GAME

38. Topic 4:$400 Question • The class Scyphozoa contains • a. sea anemones. • b. jellyfishes. • c. corals. • d. hydras. ANSWER BACK TO GAME

39. Topic 4:$400 Answer • The class Scyphozoa contains • a. sea anemones. • b. jellyfishes. • c. corals. • d. hydras. BACK TO GAME

40. Topic 4:$500 Question • Coral reefs occur in areas where there are • a. high levels of sediments. • b. very deep waters. • c. very cool waters. • d. high levels of light. ANSWER BACK TO GAME

41. Topic 4:$500 Answer • Coral reefs occur in areas where there are • a. high levels of sediments. • b. very deep waters. • c. very cool waters. • d. high levels of light BACK TO GAME

42. Topic 5:$100 Question • In a hydra, the gastroderm and the epidermis are separated by a jellylike • a. mesoglea. • b. body cavity. • c. medusa. • d. mesoderm. ANSWER BACK TO GAME

43. Topic 5:$100 Answer • In a hydra, the gastroderm and the epidermis are separated by a jellylike • a. mesoglea. • b. body cavity. • c. medusa. • d. mesoderm. BACK TO GAME

44. Topic 5:$200 Question • A characteristic of cnidarians is that they are • a. found only in warm, tropical waters. • b. named for their body symmetry. • c. attached to a surface throughout life. • d. carnivorous animals. ANSWER BACK TO GAME

45. Topic 5:$200 Answer • A characteristic of cnidarians is that they are • a. found only in warm, tropical waters. • b. named for their body symmetry. • c. attached to a surface throughout life. • d. carnivorous animals BACK TO GAME

46. Topic 5:$300 Question • In a cnidarian, cells that sense gravity are • a. amoebocytes. • b. cnidocytes. • c. ocelli. • d. statocysts. ANSWER BACK TO GAME

47. Topic 5:$300 Answer • In a cnidarian, cells that sense gravity are • a. amoebocytes. • b. cnidocytes. • c. ocelli. • d. statocysts. BACK TO GAME

48. Topic 5:$400 Question • Cnidarians have two basic body types, a medusa and a(an) • a. larva. • b. osculum. • c. polyp. • d. tentacle. ANSWER BACK TO GAME

49. Topic 5:$400 Answer • Cnidarians have two basic body types, a medusa and a(an) • a. larva. • b. osculum. • c. polyp. • d. tentacle. BACK TO GAME

50. Topic 5:$500 Question • Which are the simplest animals to have body symmetry? • a. sponges • b. cnidarians • c. nematocysts • d. algae ANSWER BACK TO GAME