What process allows a species to fit its niche?

Answer;

Evolution

Evolution is the process that allows species to fit in its niche.

Explanation;Ecological niche refers to the relational position of species or a population in an ecosystem, how it meets its needs for food and shelter, how it survives, and how it reproduces. In other words it is the ecological role of a species in an ecosystem and is defined by factors such as abiotic factors and interactions in the ecosystem.Each species in an ecosystem fits into an ecological community in its own special way and has its own tolerable ranges for many environmental factors.