Normally,a male rat cannot intromit unless
A) it is all by itself.
B) it first displays lordosis.
C) the female first displays lordosis.
D) the female has a low lordosis quotient.
E) it first ejaculates.

Question

Quizplus · Accepted Answer

Intromission in rats is initiated by the female displaying lordosis, a receptive posture that signals she is ready to mate. The male will then mount the female and begin intromission, during which he inserts his penis into the female's vagina. Therefore, choice C, "the female first displays lordosis," is the best answer.

Normally,a Male Rat Cannot Intromit Unless