Question

Competition for light, nutrients and space is most severe between 

(a) closely related organism growing in different niches 

(b) closely related organisms growing in the same area/niche 

(c) distantly related organisms growing in the same habitat 

(d) distantly related organisms growing in different niches. 

Answer 1

Correct option: (b) closely related organisms growing in the same area/niche

Explanation:

Competition is rivalry for obtaining the same resource. Competition of light, nutrients and space is most severe between closely related organisms growing in the same area/niche, due to overproduction of population in the same area/ niche.