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4. 100 200 300 400 500 Classification BehaviorEcology Random Column F Australian Animals

5. Which reproductive adaptation is more characteristic of mammals than amphibians? A external fertilization with internal development B internal fertilization with internal development C external fertilization with external development D internal fertilization with external development A 100

6. B internal fertilization with internal development A 100

7. What kingdoms did Carolus Linnaeus originally use for his classification system? A Fungi and Protista B Fungi and Animalia C Plantae and Protista D Plantae and Animalia A 200

8. D plantae and animalia A 200

9. Which kingdoms have photosynthetic organisms? A fungi and plants B fungi and protists C protists and plants D plants and animals A 300

10. C protists and plants A 300

11. An organism is eukaryotic, multicellular, heterotrophic, and has a cell wall. To which kingdom does it belong? A Animal B Fungi C Plant D Protist A 400

12. B fungi A 400

13. The structure of the digestive tube in the grasshopper and earthworm consists of many folds. The folds affect the efficiency of food absorption by which of the following functions? A increasing surface area B reducing transpiration C increasing hormone secretion D reducing storage of sugar A 500

14. A increasing surface area A 500

15. Which statement about animal behavior is most accurate? A Innate behaviors can be changed as a result of individual experiences. B Innate behaviors are generally complex and require time to perfect. C A complex nervous system is necessary for learned behavior. D Learned behaviors are acquired as a result of individual experience. B 100

16. D Learned behaviors are acquired as a result of individual experience. B 100

17. Which is an advantage of social grouping? A increased competition for limited resources B increased chance of detection by predators C increased protection from predators D increased risk of minor infections B 200

18. C increased protection from predators B 200

19. Estivation is a period of inactivity for animals experiencing conditions of extreme heat. Estivation serves the same function as which activity practiced by animals in cold environmental conditions? A camouflage B hibernation C migration D mimicry B 300

20. B hibernation B 300

21. When worker bees return to the hive, they perform a sequence of movements called a waggle dance to show other members of the colony where food is located. Which type of behavior does this best illustrate? A aggressive behavior B courtship behavior C social behavior D territorial behavior B 400

22. C social behavior B 400

23. Which is an example of a learned behavior? A A bear cub practices catching salmon the way its mother does. B A baby gazelle rises to its feet within a few minutes of its birth. C A baby kangaroo climbs into its mother’s pouch as soon as it is born. D An adult salmon returns to its freshwater stream when it is time to reproduce. B 500

24. A A bear cub practices catching salmon the way its mother does. B 500

25. The crab Lybia tessellata carries a pair of sea anemones on its claws. The crab uses the sea anemone’s stinging tentacles as protection and the sea anemone obtains small food particles released by the crab as it feeds. Which type of symbiotic relationship does this best illustrate? A commensalism B mutualism C parasitism D predation C 100

26. B mutualism C 100

27. Which substance is considered to be a factor affecting Earth’s ozone layer? A chlorofluorocarbons B ethyl alcohol C nitrogen gas D water vapor C 200

28. A chlorofluorocarbons C 200

29. In an ecosystem, which is the most likely reason for an increase in the producer population if there is an increase in the carnivore population? A fewer herbivores B higher temperatures C less food D more oxygen C 300

30. A fewer herbivores C 300

31. DAILY DOUBLE C 400 DAILY DOUBLE Place A Wager

32. Which sequence shows increasing ecological levels of organization? A organism, population, community, ecosystem B ecosystem, population, organism, community C community, ecosystem, population, organism D population, organism, ecosystem, community C 400

33. A organism, population, community, ecosystem C 400

34. Some birds live in close association with horses. These birds feed on insects that are parasites to horses. Which type of relationship between the horses and these birds does this illustrate? A commensalism B mutualism C parasitism D predation C 500

35. B mutualism C 500

36. Which will most likely happen if the decomposers are removed from the carbon cycle? A The amount of carbon dioxide in the atmosphere will increase. B The amount of carbon dioxide in the atmosphere will decrease. C The amount of carbon dioxide used by producers will increase. D The amount of carbon dioxide needed by consumers will decrease D 100

37. B The amount of carbon dioxide in the atmosphere will decrease. D 100

38. Which situation would result in the greatest increase in the human population? A decreased birth rate and increased death rate B increased infant mortality and decreased death rate C decreased death rate and increased birth rate D increased birth rate and increased infant mortality D 200

39. C decreased death rate, increased birth rate D 200

40. In a forest ecosystem, which is an abiotic factor? A the amount of rainfall B the size of the deer C the type of trees D the number of birds D 300

41. A amount of rainfall D 300

42. In the carbon cycle, atmospheric carbon dioxide is converted into organic material by which process? A cellular respiration B decomposition C photosynthesis D transpiration D 400

43. C photosynthesis D 400

44. Why do ecosystems rarely contain more than a few trophic levels? A Energy transfer efficiency is high. B Energy transfer efficiency is low. C Energy amounts remain constant. D Energy cannot flow through levels. D 500

45. B energy transfer efficiency is low D 500

46. Recent climate data suggests a global warming trend. The most likely cause could be an increase in which gas? A oxygen B carbon dioxide C nitrogen D hydrogen sulfide E 100

47. B carbon dioxide E 100

48. Silt and nutrients from eroding farmland flow into a lake. As a result, which will most likely increase first? A fish population B shore vegetation C algae growth D dissolved oxygen E 200

49. C algae growth E 200

50. The fertilized eggs of most mammals follow a similar pattern of early development. Which sequence is the typical pattern, beginning with the earliest stage? A fetus→embryo→zygote B fetus→zygote→embryo C zygote→fetus→embryo D zygote→embryo→fetus E 300

51. D zygote-embryo-fetus E 300

52. A plant species lives in an area with limited sunlight. Which physical adaptation would be most useful to the plant? A colorful flowers B large leaves C deep roots D thin cuticle E 400

53. B large leaves E 400

54. If the xylem in a young tree is damaged, which process is first affected? A performing photosynthesis B transporting sugar to the roots C transporting water to the leaves D absorbing water from the soil E 500

55. C transporting water to the leaves E 500

56. Why are humans important to the life cycle of malaria parasites? A Malaria parasites kill humans. B Malaria parasites only live in human cells. C Malaria parasites can live in mutual symbiosis with humans. D Malaria parasites use humans for reproductive purposes. F 100

57. D Malaria parasites use humans for reproductive purposes. F 100

58. After an initial infection, B-cells recognize the measles virus. How is this helpful in human immune response? A The B-cells use this recognition to defend the body against other pathogens, such as bacteria. B The B-cells more quickly recognize and respond to any other virus that invades the body. C The B-cells produce antibodies more quickly if the measles virus is encountered again. D The B-cells transfer this recognition to T-cells, which will then devour the viruses. F 200

59. C The B-cells produce antibodies more quickly if the measles virus is encountered again. F 200

60. In order to maintain good health, a person’s normal glucose level must remain within a given range. Which two systems control the blood glucose level? A endocrine and skeletal B endocrine and digestive C circulatory and lymphatic D digestive and lymphatic F 300

61. B endocrine and digestive F 300

62. How is the folded structure of the villi in the small intestine related to the function of villi? A It decreases blood flow. B It provides protection. C It increases absorption. D It provides support. F 400

63. C it increases absorption F 400

64. Which would most likely be caused by environmental conditions? A lung cancer B hemophilia C cystic fibrosis D sickle cell anemia F 500

65. A lung cancer F 500

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