In many cultures, boys were required to engage in violent rituals in which they were to submit to and sometimes engage in bloodletting of various kinds. Why have these rituals declined in frequency or disappeared?

How do social psychologists differ from those who rely on common sense or folk wisdom in answering questions about human nature? Social psychologists

a. seldom disagree with one another. b. ignore the notion of human consciousness. c. use science to test hypotheses about the social world. d. rely primarily on insight.

There are _______________ categories of free nerve ending thermal receptors

a. two b. three c. four d. five