Bella is a 10 year old girl who doesn't seem to have outgrown the "terrible twos" – she has temper tantrums on a regular basis. What diagnosis is she most likely to get when she visits a psychologist?

The concepts of variation, inheritance, and survival of the fittest are all essential components of Darwin's theory of:

a) natural selection. b) the human genome. c) homeopathy. d) osteopathy.

Who is least likely to be aggressive?

A) Cody, a Southerner who has just been insulted by a neighbor B) Juan, who just watched a daylong marathon of slasher movies C) Jeff, who has been drinking heavily at a bar D) Shoshone, who lives in Anchorage, Alaska