During early childhood, the number of neurons ___________:
a. increases, as children are stimulated in school.
b. increases, as children become more verbal.
c. decreases, due to synaptic pruning
d. decreases, due to overall brain mass decreasing.
C. Neurons that are not used prune, and therefore the number of neurons drops at this age, as it did in toddlerhood.
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On Laurel's 16th birthday, her parents gave her a new car and a Republican bumper sticker. Laurel was happy to accept the car, but didn't want to display the bumper sticker
She had begun to read and think about different political parties and, although she hadn't yet decided which political party she supported, she didn't want to be a Republican just because her parents were. In terms of her political beliefs, Laurel appears to be in Marcia's __________ identity status. a. diffusion c. moratorium b. achievement d. foreclosure
In a study examining the effects of time of day (morning or afternoon) and temperature (cool, normal, or warm) on worker productivity, how many main effects are possible?
a. 3 b. 6 c. 5 d. 2