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A key stone species

A. is a species like moss that lives on the surface of rock formations.

B. is the most common species in a community or ecosystem.

C. is a species that exists in the first trophic level

D. is a species that has a large effect on its community or ecosystem.

E. is considered a pest

User Maf
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1 Answer

5 votes
i think the answer is a!
User Josef Ginerman
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