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.
Added by Kerri M.
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Step 1: Keystone species are important species in a community that help increase diversity and maintain the structure of the community. Show more…
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