Question

restricts the size of a population from reaching its full potential birth rate limiting factor density dependent factors population ecology

Explanation:

The given definition describes a factor that curtails a population's maximum growth. Birth rate affects population increase but does not restrict it. Density dependent factors are a subset of limiting factors, not the overarching term. Population ecology is the study field, not the factor itself. A limiting factor directly fits the definition.

Answer:

Limiting Factor