Question

Why is it that species cannot occupy the same niche in the same habitat at the same time?

Answer 1

Two species occupying the same niche will be competing for the same food resource. Since the resource is limited, the stronger species will have more access to the food resource and will drive the other species to exclusion from that niche.

Step-by-step explanation:

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Answer 2

Because the species are territorial, no two species can be in the same niche at any given time