What Commonly Triggers Mating

Question

What commonly triggers mating?
A) Temperature
B) Density of intraspecifics
C) Photoperiod
D) None of the above.

Accepted Answer

Photoperiod, which is the duration and timing of light exposure, is a common trigger for mating in many organisms. Changes in photoperiod can signal changes in seasons, and thus trigger mating behavior in response to favorable environmental conditions for offspring survival. Temperature and density of intraspecifics can also have an impact on mating behavior, but they are not as universally applicable as photoperiod. Therefore, Option A and B are not strong enough answers. Option D is incorrect because there must be something that triggers mating.