What was one major impact of the Columbian Exchange on Native American peoples?
A. They lost about 90 percent of their population to European diseases.
B. They began to cooperate so they could resist European military attacks.
C. They began to conduct long-distance trade with other Native American groups.
D. They gained an advantage over Europeans because of their immunity to their diseases.

How did the Columbian Exchange change daily life in some Native American societies?
A. The importation of corn from Europe revolutionized their native diets.
B. They began trading with other Native American groups after Europeans arrived.
C. The introduction of horses from Europe transformed hunting and transportation.
D. They changed their medical treatments so they could be protected from smallpox.

How did the introduction of cassava from the New World affect civilizations in Africa?
A. It greatly improved Africans' ability to feed large populations.
B. It created more conflicts because it required more land to cultivate it.
C. It created conflicts within societies as people clung to traditional crops.
D. It was the primary way diseases were transported from the New World to Africa.

How did the Columbian Exchange affect slavery in Africa?
A. It stopped the slave trade by some European countries because it wasn't profitable.
B. It had little effect because most European countries had outlawed slavery.
C. It encouraged slave trading in areas where it had not existed before.
D. It greatly increased the slave trade that already existed in Africa.

In which of the following ways did the European conquest of the Americas affect life in Europe? Select all that apply.
A. European churches were influenced by Native American religions.
B. Population increased with the introduction of crops from the Americas.
C. Many Europeans moved to the Americas as Europe's population increased.
D. Some European social structures were modeled after Native American civilizations.