Question

if two species of bird occupy the exact same niche, what is likely to happen to one of the species?
mutualism
cohabitation
competitive exclusion

Explanation:

According to the competitive exclusion principle, when two species occupy the exact same niche (competing for the same resources like food, nesting sites etc.), one species will out - compete the other. Mutualism is a positive interaction where both species benefit, which is not the case here. Cohabitation implies peaceful co - existence, but in reality, when niches are identical, competition is intense. Competitive exclusion states that one species will be excluded (either driven to local extinction or forced to adapt to a different niche).

Answer:

Competitive Exclusion