Multiple Choice
A certain species of animal represents just 3% of the biomass in its ecosystem. We might classify this as a keystone species if its removal
A) caused plant biomass to increase by 5%.
B) caused 2% of the other species in the community to disappear.
C) caused the diversity of the plant community to decline by 40%.
D) allowed an even rarer species to increase in number and take its place.
E) had no effect on the community.
Correct Answer:

Verified
Correct Answer:
Verified
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