While observing a special monitor, a physician tells an expectant mother, "As you can see, the legs and arms have just begun to emerge." From this description, you should realize that the two are looking at a(n)
A. zygote.
B. fetus.
C. embryo.
D. germ disc.
Answer: C
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The function of angiotensin II is to
A. constrict blood vessels and trigger the release of aldosterone. B. constrict blood vessels and trigger the release of renin. C. dilate blood vessels and trigger the release of aldosterone. D. dilate blood vessels and trigger the release of renin.
Research by Susan Harter (1987, 1990) showedthat children have high self-esteem when
a. they succeed in academic tasks only. b. they are better in a skill than their peers. c. they are competent in everything that they try. d. they are competent in an area in which they are interested.
Imagine that it is discovered that men with green eyes tend to participate more in childrearing than men with blue eyes. Given what you know about parental investment, which of the following would you predict?
A. On average, parental investment for men with blue eyes will increase. B. On average, parental investment for women paired with green-eyed partners will increase. C. On average, men with green eyes tend to be more promiscuous. D. On average, women develop a preference for men with green eyes.
If a parent follows misbehavior with an unpleasant consequence, such as scolding or spanking, the parent is using
a. negative punishment. b. positive punishment. c. response cost. d. negative punishment.