African Americans (indicated as "blacks") are at a higher risk for death from heart disease than Caucasians (indicated as "whites")

One secondary male sex characteristic is __________

a) the penis. b) pubic hair. c) the testicles. d) the scrotum.

The gate-control theory of pain states that the experience of pain depends, in part, on whether pain impulses get past a neurological "gate."

Indicate whether this statement is true or false.