Multiple personalities as well as a psychologically-caused amnesia would both be classified as disorders

Men with a high school diploma or less and highly educated women in prestigious careers are overrepresented among singles after age 30 because

A) they are the most likely to have married and divorced young. B) women tend to "marry down" and men tend to "marry up." C) women tend to "marry up" and men tend to "marry down." D) they are the most likely to be closed to a long-term relationship.

All body cells of a human normally contain __________ pairs of chromosomes

Fill in the blank with the appropriate word.