The vagina is like a rigid muscular tube at rest. usually only two inches long at rest. only able to expand in width during sexual arousal or childbirth. able to expand in length and width during sexual arousal.

Answer;

-Able to expand in length and width during sexual arousal.

The vagina is able to expand in length and width during sexual arousal.

Explanation;

-The vagina is an elastic, muscular canal with a soft, flexible lining that provides lubrication and sensation.

-The vagina connects the uterus to the outside world. The vulva and labia form the entrance, and the cervix of the uterus protrudes into the vagina, forming the interior end.

well, that's easy; the answer's c, "it reduces contamination of the water and substrate of the estuary."

mass and weight are closely related because mass affects the weight of an object experiencing the effects of gravity. weight is the measure of the force of gravity on an objects's mass, while mass is the measure of how much matter there is in an object.