LIFE SCIENCE

Detailed explanation-1: -When one species has even the slightest advantage over another, the one with the advantage will dominate in the long term. This leads either to the extinction of the weaker competitor or to an evolutionary or behavioral shift toward a different ecological niche.

Detailed explanation-2: -Competitive exclusion is a consequence of interspecific exclusion as when two individuals of different species compete for food or nesting site for a long period of time. This possible outcome will lead to the exclusion or extinction of the weak competitor from this habitat.

Detailed explanation-3: -Competitive exclusion occurs because only one species can be the superior competitor for a single limiting resource. In an environment in which several species are competing for a single resource, the superior competitor eventually will extirpate the others.