Which of the following is a commonly studied species-common behavior?
A) copulating
B) nest building
C) grooming
D) swimming
E) all of the above
Answer: E
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Kareem started smoking a year ago in the seventh grade. He knows that smoking is unhealthy, but he thinks it makes him look kind of cool. Researchers have found that once adolescents try smoking, drinking, drug use, or early sexual activity, their previous estimates of the risks __________.
A. become much more accurate B. decrease C. become irrelevant D. increase
When can infants usually sit up by themselves (without assistance)?
a. by about 3 months b. not until 9-10 months c. as soon as they are old enough to lift their heads and torsos off the ground d. usually around 7 months
Baby Chuck is picked up by a stranger. He immediately looks at his mother's face, and judges his reaction based on whether she expresses pleasure or concern
Chuck's reliance on cues from his mother in forming his own reaction is best considered an example of: a. stranger anxiety b. separation anxiety c. prosocial behavior d. social referencing
Which trait is characteristic of psychological hardy people?
a. Reliance on wish-fulfillment fantasies. b. A preference for active problem-solving approaches. c. The perception that they have no control over the stressors they face in life. d. A tendency to deny the existence of problems.