While taking a shower, Miguel suddenly realizes the solution to a problem at work. When later asked how he solved this problem, Miguel said, "The answer just seemed to pop into my head." Miguel's experience is an example of

The release of neurotransmitter depends on

a) second messengers b) the influx of calcium ions c) the influx of nitrogen ions d) the sodium potassium pump

Research on marriage and stress suggests that

a. being married leads to decreases in stress. b. being married leads to increases in stress. c. the relationship between the two depends on the level of marital conflict. d. the relationship between the two becomes weaker as people age.