Which of these biological factors has been shown to influence a child's preferences among toys?
a. Size of the corpus callosum in proportion to the size of the cerebral cortex
b. Amount of testosterone exposure before birth
c. Ratio between the transmitters serotonin and norepinephrine in the brain
d. Mean velocity of action potentials of spinal nerves
b
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In adulthood, when maximum oxygen uptake is measured at rest, what is the usual age-based pattern? When maximum oxygen uptake is measured during exercise, what is the typical age-based pattern?
A) There are equal declines when measured at rest and during exercise. B) There are greater declines when measured at rest versus during exercise. C) There are greater declines when measured during exercise versus at rest. D) There are no declines when measured at rest or during exercise.
LSD is a drug that
A) Timothy Leary advocated. B) causes delusions and bizarre behaviors. C) Cary Grant used as part of therapy. D) is a fungus derivative. E) all of these.