Baby Sunni quickly closes her eyelids when her father claps his hands near her head. The function of this reflex is to
A) stimulate the eye muscle.
B) protect the infant from a blow to the head.
C) protect the infant from strong stimulation.
D) communicate irritation toward a caregiver.
Answer: C
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In research that first exposed participants to a kitchen scene and then to pictures of
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What is the most reasonable conclusion about the role of genes in alcoholism?
(a) Without a key gene, a person cannot become alcoholic; (b) the presence of a key gene will almost always cause a person to become alcoholic; (c) genes may increase a person's vulnerability to some kinds of alcoholism.