Biology

The correct answer is: C.Competition within the same species

Explanation:

Intraspecific competition refers to competition among individuals of the same species for resources, such as food, mates, shelter, or territory. Since individuals of the same species have the same needs, they often compete with each other for limited resources, especially in environments where resources are scarce.

Why the other options are incorrect:

A.Competition between different ecosystems: This is not a form of competition, but rather a broader ecological concept. Intraspecific competition involves competition within a single species, not between ecosystems.