Whether you are standing right next to it or a mile away from it, you know a tree is the same size because of________

According to Murray, hunger would be a _________, whereas the smell of a fresh pizza would be a

a. motive; need. b. need; motive. c. press; need. d. motive; press.

Which neurotransmitter system has been implicated in anger control and has been used for borderline personality?

a) norepinephrine b) serotonin c) GABA d) dopamine