The ____ theory proposed that conception occurs when both the male and female emit their "seeds" during intercourse

A decrease in the rate of reinforcement on one component of a multiple reinforcement schedule that results in an increase in rate of response on the other component is a(n) ________.

a. discriminatory contrast b. positive contrast effect c. anticipatory contrast d. negative contrast effect

Assuming it is a typical vaginal birth in the United States today, what would you tell a friend and her husband to expect during her delivery? Be sure to mention the three birth stages

What will be an ideal response?