A factor present in concentrations too much or too little to support population growth,even if all the other factors are in optimal range is known as the
A) trophic level.
B) range of tolerance.
C) biotic factor.
D) abiotic factor.
E) limiting factor.

Question

Quizplus · Accepted Answer

A limiting factor is a factor that limits the growth, abundance, or distribution of a population of organisms in an ecosystem. It can be a biotic or abiotic factor, and it can be present in concentrations that are too high or too low. A factor that is present in concentrations too high or too low is called a limiting factor because it limits the growth of the population, even if all other factors are optimal. Therefore, the best choice is E: limiting factor.

A Factor Present in Concentrations Too Much or Too Little