Two species can avoid competition and better use the environment's resources by occupying different:

Explanation

The correct answer is niches. A niche encompasses the role a species plays in its ecosystem, including how it acquires resources, survives, and reproduces. By occupying different niches, species can coexist in the same environment without direct competition, allowing each to exploit different resources and conditions effectively.Adaptations are about traits enhancing survival and reproduction but do not specifically address interspecies competition. Polymorphism refers to genetic diversity within a species and does not relate to the interaction between species. Specialization allows species to focus on specific roles, but it is more about within-species adaptation rather than interspecific niche differentiation.