Women's sexual receptivity differs from that of nonhuman female mammals in being more responsive to levels than to estrogen levels.

a)glucose
b)orexin
c)pyy
d)testosterone
e)insulin

The correct answer is letter D

Testosterone is the main male hormone, being responsible for characteristics such as beard growth, thickening of the voice and increased muscle mass, in addition to stimulating the production of sperm, being directly related to male fertility.

the answer to your question is,

old stone age.

-mabel < 3

answer; gender,race,age,/// (d) all of these;