What term is used to describe chemicals that can alter a person's mood, perception, or brain functioning?

Proactive aggressors believe that

A) their own aggressive behavior is negative and thus, they have low self-esteem. B) aggression will get them what they want, and that the personal cost is likely to be low. C) others are out to get them, so they behave aggressively and swiftly. D) aggression will get them what they want, despite the fact that the personal cost might be high.

____are reasons why adolescents form love relationships:

A. Recreation B. Courtship C. Status D. All of the above