Which of the following best describes limiting factors?
A. Limiting factors prevent a population from growing uncontrollably.
b. Limiting factors exist in some ecosystems.
c. Limiting factors help build a population.
d. Limiting factors reduce competition among individuals.
A limiting factor is a variable of a system that causes a noticeable change in output or another measure of a type of system. The limiting factor is in a pyramid shape of organisms going up from the producers to consumers and so on.