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? effects ____ 3. Where is most of the world's biodiversity? ____ 4. Based on the theory of island biogeography, you would predict that large islands near the mainland would have relatively immigration and low extinction rates. 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 ____ 7. Interspecific competition can be avoided by ____ 8. The obvious relationship demonstrated by a food chain is ____ 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 ____
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