Regarding attention-deficit/hyperactivity disorder, it is now clear that _______ suffer from the condition, though some of the diagnostic criteria are not applicable to them.

This kind of evidence suggests a trait has a genetic component

a. higher correlation for values of the trait among pairs of more closely related people than among pairs of more distantly related people b. identical measures of the trait among many members of a defined population c. widely varying measures on the trait among many members of a defined population

According to the text, it is customary in Jewish families to emphasize the connection between birth and death by:

a. taking even very young children to funerals of friends and neighbors b. keeping pictures of grandparents in every child's room c. naming children after a family member who has died d. remembering the names of dead relatives in meal-time prayers