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29/10/2021 2:55 pm
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What is a keystone species?
(1) A rare species that has minimal impact on the biomass and on other species in the community
(2) 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
(3) A dominant species that constitutes a large proportion of the biomass and which affects many other species.
(4) A common species that has plenty of biomass, yet has a fairly low impact on the community’s organization
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29/10/2021 2:56 pm
Correct answer: (2) 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.