1) Drugs that increase activity at the synapse are called
A) agonists
B) antagonists
C) neurotransmitters
D) postsynaptic receptors
E) None of the above

2) A female rat is ovariectomized and then injected with testosterone immediately after birth. In adulthood, this rat is injected with estradiol and progesterone and placed in a cage with a male rat. This female rat will
A) show evidence of material aggression.
B) attempt to mount the male.
C) show lordosis to the male rat.
D) not show female sexual behaviors.
E) show behavioral masculinization.

3) In vision, the brain processes
A) the absolute amount of light received by the retina.
B) a retinotopic map of photons received by each ganglion cell.
C) the differences in the amount of light between two points.
D) the differences in the amount of light between the green and yellow wavelengths.
E) All of the above.