Why do infants who first start to walk move about in a bowlegged fashion?
a. to support the heavy weight of the head and torso
b. because the legs are not fully developed enough to allow regular walking
c. being bowlegged is normal and we all must learn not to walk this way
d. Most infants do not walk this way.
A
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How can extinction be avoided with operant conditioning?
a. ?Establish a strong value for a conditioned stimulus. b. ?Introduce variable reinforcement paradigms. c. ?Merge classical conditioning with operant conditioning techniques. d. ?Continuously reinforce a behavior, even after it is learned.
Regarding patterns of suicide, which of the following statements is FALSE?
a. The suicide rate is three times higher in Hungary than in the United States. b. The suicide rate in the United States is almost ten times higher than the rate in Azerbaijan. c. Between 1950 and 1990, suicide rates for adolescents and young adults doubled. d. Suicide rates tend to decrease with advancing age.
Nonfunctional remnants of the Wolffian system remain in adult women
a. True b. False Indicate whether the statement is true or false
Melatonin helps to keep the biological clock in phase with ________
a. fluctuating hormone levels. b. the waning light of winter. c. seasonal fluctuations. d. the light-dark cycle.