If the sex ratios between males and females are about the same and one man has several mates the other men must, by default, be without a mate. This is an example of _ polygyny.

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Quizplus · Accepted Answer

This is an example of effective polygyny, where the actual mating system results in a few males mating with multiple females, effectively reducing the number of available females for the majority of males.

If the Sex Ratios Between Males and Females Are About