By the second birthday, a child's arms have grown longer than his legs. This is an example of

Experimental studies involvingpersons with antisocial personalitydisorders have revealed

that these people a. show less reactivity in emotional situations. b. seek out the company of other psychopaths. c. have overaroused nervous systems. d. have sustained damaged to the prefrontal cortex, which explains their lack of planning and foresight. e. are affected by social stimuli but not physical stimuli.

If calorie intake stays the same, as the basal metabolic rate decreases, the weight set point

a. decreases. b. increases. c. stays the same. d. varies up and down.