Which of these findings is consistent with the idea that behavioral trends can be
inherited?
(a) some species of dogs are bred to be more aggressive than others, and this
aggressiveness comes out even if the dogs are not trained to be that way.
(b) great racehorses are put out to stud
(c) mice selected for aggression are very much more aggressive than those
selected for nonaggressive tendencies
(d) all of the above
(e) none of the above
D
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Research on alcoholism has demonstrated that the development of alcoholism is associated with:
A. psychological factors B. genetic factors C. both psychological and genetic factors D. neither psychological nor genetic factors
Low-level radiation, resulting from industrial leakage or medical X-rays, __________
A) is harmful only when combined with other teratogens B) can increase the risk of childhood cancer C) rarely causes lasting damage D) is safe during the last trimester
The method used most commonly in studies of infant cognition and perception, in which a stimulus is presented repeatedly until the infant loses interest in it, is known as
a. conditioning b. visual fixation c. habituation d. electrocephalography
Female pseudohermaphrodites have an _______ chromosome pattern
a. XX b. XY c. XXY d. X