With the advent of the Arabs in Persia, Persians replaced Shi'ism with Islam

The case study of Phineas Gage is fascinating. In 1848 Gage was a railroad worker who was the victim of a horrible accident when an explosion caused a tamping iron to be shot through his skull

Gage survived but with several physical and psychological problems. The study of Gage after the accident provided scientists with great insight into the role of the brain in behavior. This is an example of a(n) ___________ case study. a. intrinsic b. instrumental c. descriptive d. comparative

What is one way in which voting blocs in America have changed since the 1960s?

a. The terms "liberal" and "conservative" have become more clearly defined. b. The traditional blocs have expanded to accommodate new minority groups. c. The traditional blocs remain intact, but the parties are even more ideologically pure than they used to be. d. The traditional blocs have broken up, and parties try to create new ones.