A keystone species: a. is usually a primary producer. b. has a critically important role in determining the species composition of its community. c. is always a predator. d. usually reduces the species diversity in a community. e. usually exhibits aposematic coloration.
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Such species play a critical role in maintaining the structure of an ecological community, affecting many other organisms in an ecosystem and helping to determine the types and numbers of various other species in the community. a. A keystone species is not Show more…
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Madhur L.
Keystone species: a) occur only in intertidal zones. b) play an unusually important role in determining the species composition in a habitat. c) can be removed from a habitat without any impact on the remaining species in the community. d) are primary producers and therefore usually are plants. e) are more expendable than commensal species, from a conservation perspective.
A species whose effect on the composition of a community is greater than expected based on its abundance can be called a a. predator. b. primary succession species. c. secondary succession species. d. keystone species.
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