1) _____ a bicameral, or two-chamber parliament.

2) _____ time and labor, cartoonists generally draw the hands of their characters with only three fingers and a thumb.

3) The recent discovery of a novel by Harriet Wilson, published in 1859, _____ a landmark in Black American literature.

4) _____ telescopes of the 1600’s magnified objects thirtythree times their original size.

5) Thyme, _____ , yields a medicinal oil containing thymol.

6) Grown widely in Iowa and Illinois, the soybean provides one of the world’s _____ sources of protein.

7) Copper _____ used by humans and is second only to iron in its utility through the ages.

8) _____ are inert outside living cells, but within the appropriate cells they can replicate, causing viral diseases in the host organism.

9) The United States Constitution provides for a count of the population _____ a census, every ten years.

10) Digital recording has make _____ a significantly wider dynamic range, in recorded music.

11) Astronomers estimate ______called the Pleiades in the constellation Taurus is 415 light-years away from Earth.

12) Pearl Sydenstricker Buck, _____ the Nobel Prize for Literature in 1938, is Best known for her novels about China

13) Stage producers Klaw and Erlanger were the first to eliminate arguments among leading performers _______in order of appearance, instead of prominence.

14) During the decades after the United States Civil War, a host of technical advances made possible ______and uniformity of railroad service.

15) Forests stabilize _____and retain precipitation, thereby helping to prevent erosion and regulate the flow of streams.