Longitudinal research suggests that drug use causes more problems than it solves for adolescents. Discuss some of the physical and emotional problems that alcohol, tobacco, and marijuana cause for teenagers

A grandma complains, "Mothers don't spend time with their children like they did in my day." Knowing the research, what should her grandchild answer?

a) "True, but only because people now leave teaching to the schools and don't help with children's homework." b) "True, but this only applies to single moms who must work." c) "Absolutely false. Mothers—both stay-at-home and working—spend more time with their children today." d) "True, but this only applies to mothers who work full time at high-stress jobs."

Contemporary researchers have collected evidence that naturalist Charles Darwin (1872) was correct when he asserted that facial expressions are ________ specific

a. culture b. location c. species d. feeling