Q.

An association of individuals of different species living in the same habitat and having functional interactions is             [2015]

1 ecosystem  
2 population  
3 ecological niche  
4 biotic community  

Ans.

(4)

Biological or biotic community is an assemblage of populations of different species of plants, animals, bacteria and fungi which live in a particular area and interact with one another through competition, predation, mutualism, etc. Each biotic community has a specific composition and structure, e.g., pond community.