AIIMS2008Botany-Ecology
AIIMS 2008 Botany Community Ecology MCQ Question
Type: MCQ-conceptual-Medium-Class 12
What is a keystone species?
A
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
B
a common species that has plenty of biomass, yet has a fairly low impact on the community's organization
C
a rare species that has minimal impact on the biomass and on other species in the community
D
a dominant species that constitutes a large proportion of the biomass and which affects many other species
Correct Answer
Option A
Detailed Explanation
Keystone species are those species which has significant and disproportionately large influence on the community structure and characteristics.
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