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Competition for light, nutrients and space is most severe between (a) closely related organism growing in...

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. (1988)

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Answer #1

Option b is correct. Competition occurs to obtain the same resources, therefore no competion occurs between organisms growing in different niches and hence option a and d are not correct. Option c is also not correct because distantly related organism do not involve in overproduction of population. 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.

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