CCR Biology - Chapter 13 Practice Test - Summer 2012

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1 Name: Class: Date: CCR Biology - Chapter 13 Practice Test - Summer 2012 Multiple Choice Identify the choice that best completes the statement or answers the question. 1. A group of organisms of the same species that live in the same area is called a(n) a. community. b. population. c. biome. d. ecosystem. 2. What does the diagram in Figure 13.1 show? a. the nitrogen cycle b. the water cycle c. the oxygen cycle d. the carbon cycle 3. Herbivores are which of the following? a. producers b. secondary consumers c. primary consumers d. decomposers 4. Which phrase best describes biodiversity? a. the number of individuals in an ecosystem b. the amount of biomass in an ecosystem c. the amount of available energy in an ecosystem d. the number of species in an ecosystem 5. Which organisms help convert gaseous nitrogen into ammonia in the nitrogen cycle? a. bacteria b. trees c. squirrels d. grasses 1

2 Name: 6. An ecologist counts weeds to monitor their populations. Which of the following best describes the ecologist's methods? a. modeling b. observation c. experimentation d. hypothesizing 7. Organisms that feed on dead or decaying matter are called a. herbivores. b. carnivores. c. omnivores. d. detritivores. 8. What do all the biotic and abiotic factors in a given area make up? a. a habitat b. a community c. an ecosystem d. a population 9. Which of the following parts of Figure 13.2 is an example of a biotic factor? a. sunlight b. soil c. deer d. river 10. Which process is part of the hydrologic cycle? a. nitrification b. evaporation c. decomposition d. ammonification 11. Which model shows the number of organisms at each trophic level in an ecosystem? a. biomass pyramid b. food web c. pyramid of numbers d. food chain 2

3 Name: 12. Which of the following provide most of the energy in ecosystems? a. keystone species b. carnivores c. generalists d. producers 13. Almost all autotrophs get their energy from a. sunlight. b. hydrothermal pools. c. decaying matter. d. producers. 14. An organism that has an unusually large effect on an ecosystem is called a(n) a. keystone species. b. omnivore. c. biotic factor. d. heterotroph. 15. A major regional or global community of organisms is called a. an ecosystem. b. a biome. c. a species. d. a population. 16. A group of gray wolves living in Minnesota is an example of a. a community. b. a population. c. a biome. d. an ecosystem. 17. Which two processes in the carbon cycle are also parts of the oxygen cycle? a. combustion and respiration b. photosynthesis and decay c. combustion and decay d. photosynthesis and respiration 18. Which of the following can be both primary and secondary consumers? a. herbivores b. carnivores c. omnivores d. detritivores 3

4 Name: 19. Which phrase best describes biodiversity? a. the number of individuals in a population b. the amount of biomass in a community c. the amount of available energy in a food web d. the number of species in an ecosystem 20. Bacteria are important in the nitrogen cycle because they a. help convert nitrogen into a form that organisms can use. b. respire, returning carbon dioxide into the atmosphere. c. decay and eventually form fossil fuels. d. produce sugars that plants can use. 21. An ecologist surveys weeds to monitor their populations. Which of the following best describes the ecologist's methods? a. modeling b. observation c. experimentation d. hypothesizing 22. What is a detritivore? a. a producer that gets energy from sunlight b. a consumer that feeds on autotrophs c. a consumer that can feed on autotrophs or heterotrophs d. a decomposer that feeds on dead and decaying matter 23. Which of the following best describes an ecosystem? a. all of the different species living in a given area b. all of the members of a single species living in a given area c. all of the biotic and abiotic factors in a given area d. all of the non-living factors that characterize a given area 24. Which of the following parts of Figure 13.2 are biotic factors? a. soil, mushroom, tree b. soil, sunlight, river c. deer, mushroom, tree d. sunlight, river, deer 4

5 Name: 25. Which process is part of the hydrologic cycle? a. nitrification b. transpiration c. decomposition d. sedimentation 26. A pyramid of numbers is used to show a. the distribution of biomass in an ecosystem. b. a network of feeding relationships. c. the distribution of organisms in an ecosystem. d. a chain of feeding relationships. 27. All of the organisms that inhabit the savanna make up a(n) a. ecosystem. b. biome. c. species. d. population. 28. Which statement is true of producers? a. They consume most of the biomass in ecosystems. b. They fix most of the nitrogen in ecosystems. c. They produce most of the carbon dioxide in ecosystems. d. They provide most of the energy in ecosystems. 29. What are two processes by which autotrophs make food? a. chemosynthesis and photosynthesis b. photosynthesis and respiration c. chemosynthesis and decomposition d. decomposition and combustion 30. If a keystone species is removed from an ecosystem, a. abiotic and biotic factors can be affected. b. only biotic factors can be affected. c. only abiotic factors can be affected. d. neither abiotic nor biotic factors can be affected. 5

6 CCR Biology - Chapter 13 Practice Test - Summer 2012 Answer Section MULTIPLE CHOICE 1. ANS: B PTS: 1 DIF: Level A REF: act0976aaf a7_14 STA: KY ANS: D PTS: 1 DIF: Level A REF: act0976aaf a7_22 STA: KY KY KY KY KY KY KY KY ANS: C PTS: 1 DIF: Level A REF: act0976aaf a7_30 4. ANS: D PTS: 1 DIF: Level A REF: act0976aaf a7_38 STA: KY ANS: A PTS: 1 DIF: Level A REF: act0976aaf a7_46 STA: KY KY ANS: B PTS: 1 DIF: Level A REF: act0976aaf a7_54 7. ANS: D PTS: 1 DIF: Level A REF: act0976aaf a7_62 8. ANS: C PTS: 1 DIF: Level A REF: act0976aaf a7_70 STA: KY KY KY KY ANS: C PTS: 1 DIF: Level A REF: act0976aaf a7_78 STA: KY ANS: B PTS: 1 DIF: Level A REF: act0976aaf a7_86 STA: KY KY ANS: C PTS: 1 DIF: Level A REF: act0976aaf a7_ ANS: D PTS: 1 DIF: Level A REF: act0976aaf a7_102 STA: KY ANS: A PTS: 1 DIF: Level A REF: act0976aaf a7_110 STA: KY KY KY KY ANS: A PTS: 1 DIF: Level A REF: act0976aaf a7_118 STA: KY KY KY KY KY ANS: B PTS: 1 DIF: Level A REF: act0976aaf a7_126 STA: KY

7 16. ANS: B PTS: 1 DIF: Level B REF: act0976aaf18007e17f_14 STA: KY ANS: D PTS: 1 DIF: Level B REF: act0976aaf18007e17f_22 STA: KY KY KY KY KY ANS: C PTS: 1 DIF: Level B REF: act0976aaf18007e17f_ ANS: D PTS: 1 DIF: Level B REF: act0976aaf18007e17f_38 STA: KY ANS: A PTS: 1 DIF: Level B REF: act0976aaf18007e17f_ ANS: B PTS: 1 DIF: Level B REF: act0976aaf18007e17f_ ANS: D PTS: 1 DIF: Level B REF: act0976aaf18007e17f_ ANS: C PTS: 1 DIF: Level B REF: act0976aaf18007e17f_70 STA: KY KY KY KY KY ANS: B PTS: 1 DIF: Level B REF: act0976aaf18007e17f_79 STA: KY ANS: C PTS: 1 DIF: Level B REF: act0976aaf18007e17f_87 STA: KY KY KY ANS: C PTS: 1 DIF: Level B REF: act0976aaf18007e17f_ ANS: B PTS: 1 DIF: Level B REF: act0976aaf18007e17f_127 STA: KY ANS: D PTS: 1 DIF: Level B REF: act0976aaf18007e17f_103 STA: KY ANS: A PTS: 1 DIF: Level B REF: act0976aaf18007e17f_111 STA: KY KY KY KY KY KY KY KY KY KY 9-12.SC-HS ANS: A PTS: 1 DIF: Level B REF: act0976aaf18007e17f_119 STA: KY KY KY KY KY KY KY KY

8 CCR Biology - Chapter 13 Practice Test - Summer 2012 [Answer Strip] _ B 6. _ D 12. _ D 19. _ C 25. _ B 1. _ D 7. _ A 13. _ A 20. _ C 26. _ D 2. _ C 8. _ A 14. _ B 21. _ B 27. _ C 9. _ B 15. _ D 22. _ D 28. _ B 16. _ C 23. _ A 29. _ C 3. _ D 17. _ B 24. _ A 30. _ D 4. _ B 10. _ A 5. _ C 11. _ C 18.

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