Examlex
Differences in political beliefs do not appear to be a factor that contributes to violence.
Semelparous
Having a single reproductive effort in a lifetime.
Iteroparous
Having repeated reproductive cycles throughout a lifetime. Compare with semelparous.
Density-Dependent Factor
An environmental factor whose effects on a population change as population density changes; tends to retard population growth as population density increases and enhance population growth as population density decreases. Compare with density-independent factor.
Negative Feedback
A regulatory mechanism in which a stimulus causes an opposite output in order to maintain an ideal level of whatever is being regulated.
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