When a man has an erection, which parts of his penis become engorged with blood?
A) Urethra and frenulum
B) Frenulum and corpus spongiosum
C) Urethra and corpora cavernosa
D) Corpora cavernosa and corpus spongiosum
A
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As children are added to the family, marital satisfaction tends to
a. increase for mothers and fathers, but more steeply for fathers. b. increase for mothers and fathers, but more steeply for mothers. c. decrease for mothers and fathers, but more steeply for fathers. d. decrease for mothers and fathers, but more steeply for mothers
Tension between one's competencies and the demands of society is due to
a. the biological imperative. b. self-insight. c. a normative crisis. d. plasticity.
The estradiol normally found in the bloodstream of a female rat fetus neither masculinizes nor feminizes its development because it ____
a. is chemically converted to testosterone b. is prevented from entering the developing cells c. is chemically unstable at the body temperature of a fetus d. would have no effect on cells even if it did enter them
Which schedule of reinforcement is most likely to lead to a postreinforcement pause?
a) FR 1 b) FR 25 c) VR 10 d) VR 25