Male rats have more motor neurons in a structure known as the SNB than do female rats likely because the SNB is responsible for
A) controlling the muscles of the rat's penis.
B) parenting behaviors in male animals.
C) the production of sperm.
D) the production of testosterone.

Question

Quizplus · Accepted Answer

The SNB (spinal nucleus of the bulbocavernosus) is responsible for controlling the muscles of the penis during copulation. Therefore, male rats require more motor neurons in the SNB than females.

Male Rats Have More Motor Neurons in a Structure Known