An instance of ________ occurs when the plumage of male birds becomes increasingly brighter over time.
A) contrasexual selection
B) intrasexual selection
C) intersexual selection
D) multisexual selection
E) dimorphic selection

Question

Quizplus · Accepted Answer

Intersexual selection refers to mate choice, where individuals of one sex choose mates based on traits that are attractive to the opposite sex. In the case of male birds becoming increasingly brighter over time, this is likely due to female birds preferring brighter plumage in males as a signal of genetic quality or fitness. This is an example of intersexual selection driving the evolution of male traits.

An Instance of ________ Occurs When the Plumage of Male