Cell adhesion molecules are thought to mediate

In industrialized nations, studies confirm that

A) heredity accounts for excessive weight gain. B) obesity risk is greatest for individuals living in economically well-off households. C) parental feeding practices have little impact on childhood obesity. D) children of mothers who smoked during pregnancy are more likely to be overweight.

Historically, rites of passage served to:

a. control the speed of social development b. indicate that the child has graduated from high school c. limit the amount of work that parents could expect a child to perform for the family d. mark a change in status from child to adult