Multiple Choice
A keystone species
A) has a disproportionately large effect on a community relative to its abundance.
B) controls the prey species.
C) may increase or decrease the number of prey species in a community.
D) has a disproportionately large effect on a community relative to its abundance and may increase or decrease the number of prey species in a community.
E) has a disproportionately large effect on a community relative to its abundance, controls the prey species, and may increase or decrease the number of prey species in a community.
Correct Answer:

Verified
Correct Answer:
Verified
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