James, who is of Japanese ancestry, shows great respect for his elders in everyday matters as part of his Asian culture. This is part of a tradition known as:

Which of the following statements about heredity and intelligence is TRUE?

A) Similarities in intelligence between identical twins who were separated at birth and raised in different houses must be due to heredity. B) Differences in intelligence between identical twins who were separated at birth and raised in different houses must be due to heredity. C) Differences in intelligence between identical twins must be due to differences in their environments. D) If identical twins are separated at birth and raised in different homes, yet still have similar intelligence scores, the similarity in their scores must be due to hereditary influences.

If Mark is a typical adolescent, you should expect that the amount of conflict he has with his parents is likely highest during which of his adolescent years?

a. between age 11 and 12 b. between age 13 and 14 c. between age 15 and 16 d. between age 17 and 18