Studies of adopted children and both their biological and adoptive parents indicate that
A) heredity does not influence IQ because the IQ scores of adopted children do not resemble those of their biological parents.
B) environment does not influence IQ because the IQ scores of adopted children do not resemble those of their adoptive parents.
C) the impact of the environment on IQ increases as children grow older.
D) the impact of heredity on IQ increases as children grow older.

Question

Quizplus · Accepted Answer

Studies have shown that as adopted children grow older, their IQ scores tend to resemble more closely those of their biological parents rather than their adoptive parents, indicating that the impact of heredity on IQ increases with age.

Studies of Adopted Children and Both Their Biological and Adoptive