The two extremes of nutritional disorders in teenagers are obesity and eating disorders such as anorexia nervosa and bulimia

For Piaget, children at all ages are like scientists in that they create theories about how the world works

Indicate whether the statement is true or false

Frustration probably encourages aggression because it

a. triggers genetic mechanisms. b. makes people uncomfortable. c. triggers biological cues for aggression. d. relieves tension.