Domesticated animals: The Americas had not seen horses, pigs, or cattle prior to the arrival of the Europeans.
These animals changed how Native Americans lived, ate, and fought. They were able to use horses to travel more quickly, fight their enemies, and eventually in agriculture. The animals also brought disease which harmed the Native Americans.
I believe it was the New Jersey Plan, which proposed that "e<span>ach state was equal regardless of the size of its population."</span>
It helped former slaves and poor whites in the south during reconstruction after the US civil war.
As a response to Japan's invasion of French Indochina, the United States "<span>D. froze all of Japan's financial assets in the United States," since it was thought that this would put enough pressure on the Japanese to release their "grip" on the region. </span>