All groups have unspoken rules of conduct, which establish acceptable behavior in most situations and are referred to as social __________

In 1848, Phineas Gage, a foreman on a railroad construction crew, suffered a serious head injury when an accidental explosion fired a 13-pound metal rod through his left cheekbone and out the top of his cranium

The damage to Gage's left frontal lobe triggered __________ A) frequent seizures and episodic memory loss. B) profound mental and physical retardation. C) a permanent loss of his vision and hearing. D) a permanent and profound change in his personality.

One in __________ children lives in a low-income household in the United States

a) two b) three c) eight d) twenty