Children raised in Russian orphanages (versus those raised by their biological parents) showed chemical alterations that affected the expression of genes responsible for brain development and function. This example best illustrates __________

You spend Thanksgiving vacation at your friend's home. When you first enter your friend's home you are struck by a funny smell, which no one else seems to notice. What process is responsible for the different reactions you and your friend's family have?

a) adaptation b) habituation c) transduction d) cognitive dissonance

It is difficult to distinguish between colors at night because ________

a. we are seeing primarily with the rods b. we are seeing primarily with the cones c. rods do not adapt to the dark d. we are seeing mostly with the fovea