1.

Keystone species deserve protection because theseA. are capable of surviving in harsh environmental conditionsB. indicate presence of certain minerals in the soilC. have become rare due to overexploitationD. play an important role in supporting other species.

Answer» Correct Answer - D
Keystone species are those which have significant and disproportionately large influence on the community structure and characteristics. It has often considerably low abundance and biomass as compared to dominant species. Removal of such species causes serious disruption in structure and function of community.


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