Question

A keystone species is the one which has

• A. A small proportion of total biomass but has a huge impact on the community's organisation and survival.
• B. A plenty of biomass but low impact on community's organisation.
• C. A rare species with little impact on biomass and other species in the community.
• D. A dominant species which has a large proportion of biomass and which affects many other species.

Answer 1

The correct option is A A small proportion of total biomass but has a huge impact on the community's organisation and survival.

A keystone species is a non dominant species. It determines the structure of a given population, despite of present in limited amounts.

So, option A is the correct answer