ch16 - Chapter 16 Ecology: How Do Organisms Interact with...

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Chapter 16 Ecology: How Do Organisms Interact with Their Environments? 1. The function of the ecosystem is to provide: a. air b. food c. water purification d. climatic moderation e. all of the above Ans: e 2. A pond is a good example of an ecosystem because of all of the following EXCEPT: a. Ponds are a closed system b. Ponds are a dynamic, every changing system c. Ponds have definable boundaries d. Water cycles through the pond by precipitation, runoff, evaporation e. Populations of organisms interact within the pond Ans: a 3. An ecosystem is made up of which of the following components? a. energy b. weather c. communities of organisms d. biotic and abiotic factors e. all of the above Ans: e 4. The biotic components of the environment consist of: a. rocks b. soil c. detritus d.organisms e. atmosphere Ans: d 55
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Chapter 16 5. Which of the following is an important characteristic of ecosystems? a. Ecosystems tend to cycle materials. b. Ecosystems are static through time. c. Ecosystems are routinely closed. d. Ecosystems have ill-defined boundaries e. all of the above Ans: a 6. What enhances the survival of organisms in a particular environment? a. mutations b. adaptations c. skin d. evaporation e. animation Ans: b 7. Two abiotic factors, which would affect distribution of organisms in the ocean, are: a. temperature and wind b. available fresh water and light c. light and temperature d. humidity and altitude e. precipitation and evaporation Ans: c 8. Swamp plants will not grow in ______ soils. a. dry b. moist c. soggy d. partially saturated e. intermittently saturated Ans: a 56
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Chapter 16 9. Organisms do best within a range of conditions that are optimal for them. The prefix _____ denotes a wide tolerance, while _____ denotes narrow ranges. a. eury- ; steno- b. steno- ; eury- c. expan- ; taper- d. exten- ; slim- e. ex- ; in- Ans: a 10. Which of the following terms is correctly matched with its range of tolerances for temperature? a. euryhedral b. eurythermal c. stenohedral d. stenothermal: narrow range of tolerance e. eurytolerential Ans: d 11. All of the following cycle through ecosystems EXCEPT: a. water b. nutrients c. energy d. carbon dioxide e. oxygen Ans: c 12. An analogy is a relationship between two pairs of words or phrases. Which of the following BEST completes this analogy? An ocean IS TO evaporation AS a. a tree IS TO transpiration b. a cow IS TO photosynthesis c. an ice tea IS TO condensation d. a mitochondrion IS TO ATP production e. a river IS TO transpiration Ans: a 57
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Chapter 16 13. What molecule supplies carbon to plants for inclusion in organic compounds? a. CH 4 b. CH 3 Cl c. CO 2 d. CH 2 OH e. C 6 H 12 O 6 Ans: c 14. Cycles in which nutrients cycle through both biological and geological phases are called _____ cycles. a. biochemical
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ch16 - Chapter 16 Ecology: How Do Organisms Interact with...

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