An important function of ________ is to convert catecholamines and serotonin into inactive forms

Jack and Jill are twins. Because he is a boy, Jack's parents encourage him to run. However, they discourage Jill from engaging in athletic activity. As a result, Jack is much faster at running up a hill than Jill. The difference in Jack and Jill's behavior is best explained by a. nonshared environmental influences. b. active gene-environment relations

c. polygenetic effects. d. niche-picking.

In response to the psychodynamic and behaviorist perspectives, the humanistic movement:

A. put more control of personality development in the hands of the individual. B. put less control of personality development in the hands of the individual. C. believed personality development could not be influenced by the environment or early childhood experiences. D. Believed most personality characteristics were predetermined.