Newborns focus best on objects at what distance?
a. 1 to 2 inches away
b. 7 to 10 inches away
c. 24 to 30 inches away
d. 36 to 48 inches away
b
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When using a _____ hypothesis, the researcher predicts that the groups being compared will differ but does not predict how they will differ
a. null b. directional c. one-tailed d. two-tailed
An axon that does not receive enough neurotrophins from a target cell will ____
a. branch out and form other synapses on other cells b. manufacture its own neurotrophins c. degenerate and die d. fail to reabsorb transmitters that have already been released
Lesch-Nyhan syndrome is an example of a:
A. genetic disorder that causes mental retardation B. cluster of symptoms displayed by some mentally retarded individuals C. form of cerebral palsy D. viral infection that causes mental retardation
Research suggests that, in general, alcohol tends to increase aggression only ____
a. among habitual drinkers b. among people with high testosterone levels c. when people are exposed to provocations or frustrations d. among men