Which of the following is an effective method of birth control?
A) ?Breastfeeding.
B) ?Withdrawal.
C) ?Douching.
D) ?None of the above.
D
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Encoding information from short-term to long-term memory is most efficient when it:
A. is not overly repetitive B. is accompanied by relaxation C. involves the forming of associations D. is performed subconsciously
Action potentials only go in one direction, away from the cell body, because a. the adjacent prior segment of axon is still at +40mV
b. voltage-dependent gates are limited in the frequency with which they can open. c. the adjacent prior segment is still in refractory period. d. the action potential temporarily disables the sodium-potassium pumps.
Comparisons of adolescents' and adults' decisions on hypothetical dilemmas show that ______.
A. adolescents, but not adults, show an optimistic bias and view their own risks as lower than those of their peers B. a dramatic difference exists between adolescent and adult ratings of perceived harmfulness of risks C. adults generate more consequences to each decision option D. adolescents are more likely to mention risks and benefits of each option
Complete the following analogy. Reward of helping: ________ :: cost of helping: ________
a. relieves distress; embarrassment b. pain; time c. danger; relieve distress d. embarrassment; pain