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Both Gregor Mendel and Alfred Wegener proposed ideas that were not accepted completely by the scientific community during their lifetimes. They had common ideas. They were presented by amateur scientists who were not accepted by the scientific community.
The answer would be letter A.
Explanation:
Others opposed the creation of a national government that would have power over the states. They were called Anti-Federalists. They believed that each state should have the right to decide its own laws. They also thought the Constitution gave the president and Congress too much power.
There were various reasons why the United States decided to follow a policy of isolation during the 1930's.
First off, the Great Depression pushed people away from foreign affairs as they wanted to resolve internal affairs first.
Second off, the number of soldiers lost in World War I kept citizens of the USA weary of foreign countries.
Because of World War I, many citizens that were advocating for isolationism pushed the country to stay out of World War II and affairs that they had no business in (at least until Germany sunk the Lusitania).
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