______ occurs when a great deal of blood flows into the blood vessels in a region, in this case the genitals, as a result of dilation of the blood vessels in the region.

How is a cesarean section performed?

Vibrators

Summarize the scientific arguments for and against the existence of the G-spot as a sexual organ that provides women a specific kind of pleasure. 

The first stage of labor begins when

______ is a form of extramarital sex in which married couples exchange partners with other couples, or engage in sexual activity with a third person, with the knowledge and consent of all involved.

is the cessation of menstruation.

Which of the following occurs during el Nino weather events?

The ______ is analogous to the ovaries in females.

Which of the following pairs of ocean constituents tend to vary inversely?