Ch 7-11_ 13 Tests - Ch 7 Community Ecology Quiz Multiple...

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Ch 7 Community Ecology Quiz Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. What does species richness refer to? a. the number of individuals of each species. b. the number of different species. c. the number of edge effects. d. the number of ecotones in an area. e. the number of different communities. ____ 2. What does species evenness refer to? a. the number of individuals of each species b. the number of different species c. the number of edge effects d. the number of ecotones in the area e. the number of different communities ____ 3. Where is most of the world's biodiversity? a. high-latitude forests b. middle-latitude grasslands c. low-latitude forests d. polar grasslands e. tundra ____ 4. Based on the theory of island biogeography, you would predict that large islands near the mainland would have relatively a. high immigration and low extinction rates. b. high immigration and high extinction rates. c. low immigration and low extinction rates. d. low immigration and high extinction rates. e. not enough information to predict. ____ 5. Species that normally live and thrive in a particular ecosystem are known as a. nonnative species. b. native species. c. keystone species. d. specialist species. e. generalist species. ____ 6. Species that serve as early warnings of environmental damage are called a. nonnative species. b. native species. c. specialist species. d. indicator species. e. generalist species. ____ 7. Interspecific competition can be avoided by a. eating at different times. b. resource partitioning. c. character displacement. d. All of these answers. e. None of these answers. ____ 8. The obvious relationship demonstrated by a food chain is a. competition. b. predation. c. parasitism. d. mutualism. e. commensalism. ____ 9. Prey are least likely to defend themselves against predators by a. camouflage. b. acute senses of sight and smell. c. protective shells. d. pursuit and ambush. e. warning and ambush. ____ 10. You are an evolutionary entomologist. You have observed beetles who can raise their abdomens and give off a defensive chemical that generally repels predators. You discover a new species of beetle that raises its abdomen in a threatening way similar to the first species, but no defensive chemical is given off. You are most likely to characterize this defensive strategy as a form of a. camouflage. b. chemical warfare. c. mimicry. d. flight mechanism. e. warning coloration. ____ 11. A relationship in which a member of one species obtains its nourishment by living on, in, or near a member of another species over an extended time is best labeled a. competition. b. predation. c. mutualism. d. parasitism. e. commensalism. ____ 12.
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This note was uploaded on 12/08/2011 for the course ENVIRONMEN 101 taught by Professor Chow during the Spring '11 term at Marquette.

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Ch 7-11_ 13 Tests - Ch 7 Community Ecology Quiz Multiple...

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