1. Most doctors of the Colonial period believed _______ was caused by an imbalance of humors in the body.

2. In 1976 Sarah Caldwell became _________ at the Metropolitan Opera House in New York City.

3. On January 7, 1955, Marian Anderson became _________ to sing a major role at New York City’s Metropolitan Opera House

4. Perhaps the most significant postwar trend was the decentralization of cities throughout the United States, _________ when massive highway-building programs permitted greater suburban growth.

5. Ronald Reagan had served two terms as governor of California before _________ President

6._________, domesticated grapes grow in clusters, range in color from pale green to black, and contain sugar in varying quantities

7. The cymbal is ________ in the military band and is also frequently used in modern orchestral music

8. In instrumentalist philosophy, ideas and knowledge are exclusively functional processes: they are of significance only _________ instrumental in the development of experience

9. _________ either by cooling or by depriving the fire of oxygen, and most do both.

10. The introduction of mass-production methods enabled many people _________ and gave them an unprecedented amount of mobility.

11. Frances Perkins, _________ of the United States cabinet, served in the cabinet as secretary of labor from 1933 to 1945.

12. When _________ to dough and heated, carbon dioxide is released, causing the dough

. _________ the percentage of individuals with similar traits in succeeding generations, geneticists use the theory of probability

Big-band jazz relies on fixed arrangements, where _________ than one instrument playing some of the parts, rather than on improvisation.

Because of _________ diversity, seven separate groupings or divisions of algae have been established by botanists

Chromosomes are regarded today as the major carriers of genetic material, _________ of DNA and various types of protein

The leopard seal is the only pinniped _________ preys on penguins and other seals.

_________ “nova” means new, novas are actually stars that have existed for a long time and suddenly flare into brilliance.

. Because Mars is farther from the Sun than _________, Mars takes longer to complete a revolution.

A social system is _________ of social relations that draws the behavior of its members toward the core values of the group.

Bubbles, flaws, and other irregularities diffuse the light that passes through stained glass, _________ the glass sparkle.

Fog is common near _________ inland bodies of water and along coasts in temperate zones.

The portrayal of everyday life in the objects of folk art makes it _________ valuable source of history

_______ by the United States government’s Bureau of Labor Statistics, the Consumer Price Index compares current costs of goods and services with past costs.

_________ carries the genes, which determine the hereditary characteristics of the cell or organism

 _________ directly with most metals to form compounds called carbides

Meteorites are slowed down by Earth’s atmosphere, but if they are moving _________, they can form a crater on impact

Located at the upper end of each________ an adrenal gland, an integral part of the endocrine system

About 75 percent of all cadmium is used for cadmium plating of _________ such as iron and steel.

. An atom is a basic structural unit of matter, the smallest particle of an element _________ into chemical combination

All the major cities of the United States, ________ the cities of the Great Lakes and the Gulf of Mexico, began as centers of trade.

Settled by English Puritans in 1630, Boston became _________

. Navigators on ships and aircraft use a compass to determine _________ they are heading.

A condenser is a heat exchanger _________ steam or vapor loses heat and returns to liquid form

Published in 1957, John Cheever’s first novel, The Wapshot Chronicle, earned _________ the National Book Award.

As seen from the Earth at night, _________ planet Jupiter ranks third among the planets and stars in maximum brightness, after Venus and Mars

_________ produces a crimson glow in a vacuum tube and is used extensively in advertising displays.

. Chaparral consists of _________ stunted by short, wet winters followed by long, dry summers

The Monroe Doctrine of 1823 was _________ of United States policy concerning the activities and rights of European powers in North and South America.

_________ to stand in a warm place, it sours because of the presence of bacteria that convert milk sugar into acid