__________ is a derivative of morphine that is highly addictive

In depressed people, the circadian rhythm:

a. Is phase-advanced b. Causes one to be wide awake in the evening c. Is phase-delayed d. Is relatively normal, although people perceive that they haven't slept well

Research on the factors that increase aggression (e.g., alcohol, exposure to violent media, and narcissistic personality tendencies) suggests that such factors only increase aggression ____

a. among males b. when people are provoked or frustrated c. among people who ARE NOT chronically violent d. among people who ARE chronically violent