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What is a keystone species?...

What is a keystone species?

A

A species which makes up only a small proportion of the total biomass of a community , yet has a huge impact on the community's organization and survival

B

A common species that has plenty of biomass, yet has a fairly low impact on the community's organizatiion

C

A rare species that has minimal impact on the biomass and on other species in the community

D

A dominant species that constitutes a large proportion of the biomass and which affects many other species

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The correct Answer is:
A
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