The Italian explorer who accidentally “discovered” America in 1492 was

Which Kentucky senator took the leading role in arranging passage through Congress of the complicated series of  bills known as the Compromise of 1850?

The group of Native American tribes, located mainly in New York, who usually allied with the English during the 17th and 18th century colonial wars between France and England, were known as the:

The Illinois politician, a member of the new Republican Party, who became nationally known as a result of his famous series of debates with Stephen Douglas in 1858 was:

The famous Supreme Court case of Marbury v Madison in 1804 gave the court the important power to:

The London Company (or Virginia Company) went bankrupt and lost control of its colony in Virginia because of

Deep in the ocean are communities nestled around hydrothermal vents where super-heated water springs from the bottom of the ocean.  No sunlight ever penetrates to these deep regions. The water from the vents is rich in dissolved minerals such as hydrogen sulfide which supports a large population of chemoautotrophic bacteria that use sulfur compounds to form organic matter by chemosynthesis.  These communities frequently have worms, clams, shrimp, and many other organisms clustered together. In hydrothermal vent communities, shrimp feed on the chemoautotrophic bacteria, and large weird fish feed on the shrimp. This food chain represents a ___.   

Lessons from Easter Island Use the list of words to answer the questions about what brought about the collapse of Easter Island.   

Which statement is false regarding the carbon cycle?

Which of the following is an example of the bottom-up form of population regulation?