By comparing behavior within pairs of dizygotic twins (fraternal twins) with that of pairs of monozygotic twins (identical twins), researchers can determine whether monozygotic twins are more similar on a particular trait, on average, than dizygotic twins

Aisha's parents have transferred her to a private school. It is likely that she will

A) not have access to as many advanced courses as her friends in public school. B) do no better on achievement tests than she would have if she hadn't transferred. C) receive more support and help from her parents and teachers. D) have just as many classmates whose parents are poor.

The field of __________________ is the scientific study of age-related changes in behavior, thinking, emotion, and personality

A) biology B) psychology C) human development D) sociology