The evolutionary perspective on mate selection claims that males and females differ in preferences of mate selection
primarily due to the
A hormone compositions of each gender
B. societal expectations and restrictions of each gender
C. difference in innate social capabilities
D. difference each gender displays in attraction cues

The images show two species of tree frogs in a particular region. the gray tree frogs are adapted to the trees of the woodlands, while the green tree frogs can survive in woodlands or grasslands. the gray frog was abundant in the woodlands. because of climatic changes, most of the trees in the region died, and the woodlands changed to grasslands. in such a case, the . the gray tree frog is closely related to the green tree frog genetically, but they have different mating calls. this suggests that speciation occurred because of .