Low intensity states that can last for many hours, or even days, can affect day-to-day behavior, and are closely tied to circadian rhythms are called __________

_____ thinking involves considering various pieces of evidence, synthesizing them (i.e., fitting them together), and relating them to the bigger picture.

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

Children are more likely to be friends with those who are

A) of the opposite sex. B) similar to them. C) older than themselves. D) younger than themselves.