The book The Origin of Species was written by

Following on Freud’s theoretical work, several theorists focused on the cognitive and emotional processes involved in intimate relationships, cognitive representation of important others, etc. This was called ___________ relations theory

Fill in the blank(s) with the appropriate word(s).

By midlife, __________

A) half the rods in the retina are lost B) the cones in the retina double in size C) the blood supply to the retina increases D) the retina becomes thicker and more sensitive