Homework Answers
Question:- Which of the following are characteristics of a keystone species?
Sol:- Their presence dictates the survival of the entire community.
Explanation:- When the activity of a species determines community structure in spite of their low abundance or biomass, that species is called a keystone species. Keystone species play a vital role in controlling the relative abundance of other species. The loss of a keystone species can lead to sharp population drop and extinction of other species that depend on it for certain services and causes serious disruption in the functioning of the community.
So here first option is the right option and other option is easily excluded.
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