The saying, "Birds of a feather flock together" is most closely aligned with the _______ principle of perceptual organization

Izmit and Emer are two adolescent boys living with both their parents. Izmit can't wait to be old enough to move away from home. He feels like every time he asks for something his mom

says no. Emer doesn't feel the same way his brother does. Emer feels his parents are loving and allow him sufficient autonomy. According to the text, Izmit and Emer are a. unique; they are both adolescents and their diverging behavior is troublesome. b. normal; adolescents can experience very different feelings in the same home. c. Izmit needs to seek professional advice to understand his hostile feelings. d. Emer is younger than Izmit and will feel the same way in a few years

According to statistics reported in the text, what percentage of U. S. teenagers have used alcohol by the end of high school?

a. 30% b. 55% c. 70% d. 92%