Question

which best describes the relationship between two species and a niche?

if two species have the same niche, one species will always become extinct.

two species are able to occupy the same niche in the same habitat.

two species cannot occupy the same niche in the same habitat.

if two species have the same niche, one species will always move.

Explanation:

This question is about the ecological concept of a niche and species interactions. The competitive exclusion principle states that two species cannot occupy the same niche in the same habitat at the same time because they would compete for the same resources, and one would outcompete the other. The first option is incorrect as extinction isn't always the outcome (species might adapt or move). The second option goes against the competitive exclusion principle. The fourth option is incorrect as moving isn't always the result (adaptation or competitive exclusion could occur instead). So the correct statement is that two species cannot occupy the same niche in the same habitat.

Answer:

C. Two species cannot occupy the same niche in the same habitat.