The columbian exchange had a very negative effect on the Native Americans. The native americans received mostly disease from Europeans, but also certain plants and animals. Syphilis is one thing Europeans contracted from Native Americans.
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Answer: The Reformation while Jews in Eastern Europe remained relatively insulated from outside influence, Jews in Western Europe were affected by an internal schism within Christianity that set into motion forces which are still not spent; forces which changed forever the face of civilization, which ushered in the beginning of the modern western world.
Explanation: Give me the brainliest
Answer: B- there were many different competing ethnic groups.
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