Answer: C ecological niche
Step-by-step explanation:
An ecological niche in a habitat, describe the interactions between a species, organisms with the other population of its community, in regards to distribution of resources, competition, predation and parasites.
According to the principle of competitive exclusion, two species can not continue to occupy exactly the same ecological niche in a habitat and coexist peacefully. Species with exactly the same niches will have similar needs and will compete for exactly the same limited resources such as food.