In Pavlov's experiments with dogs, salivation to the bell was the

In 2007, _____ percent of high school seniors ate the recommended five or more servings of fruits and vegetables each day

19 29 59 89

Scarr (1992) identified factors that contribute to individual differences among children. Which one of these factors is most reminiscent of the theme of the "active child"?

a. differences in treatment by parents and others b. children's different choices of environments, activities, roles, and niches c. genetic differences among children d. different effects that similar experiences have on children