The first stage of labor begins when

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. 

is the cessation of menstruation.

______ 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.

Which of the following occurs during el Nino weather events?

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

The ______ is analogous to the ovaries in females.

Which of the following is true of sexuality in children?

During spring tides, the high tide tends to be very high, and the low tides are very low.

Which of the following is true of sexuality in children?