ZoologyWhat is a keystone species?

What is a keystone species?

  1. A

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

  2. B

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

  3. C

    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 

  4. D

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

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    Solution:

    A keystone species is the type of species that makes up only a small proportion of the total biomass of a community yet has a huge impact on the survival and organisation of that community. These help in defining the survival of an entire ecosystem. 

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