B.
The Federal Reserve Board of Governors is the governing body that guides the U.S. central bank. The board consists of seven members who each serve fourteen-year terms. Board members serve staggered terms. A new one is appointed every two years.
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I believe the reason for this would be geographical evolution. Different ecosystems cause the finches to evolve differently over time. Also, since the finches on the Galápagos Islands are closer to the one in South America, it is likely that finches from there (South America) could have moved to the islands, contributing to the evolutionary process.
I think it’s the third one , not sure ☺️
A. Eisenhower Doctrine
This was so that any Middle Eastern state who felt under aggressive pressure from another country could ask for the help of the United States. Although he did not explicitly state that it was for Communist or Soviet aggression, this has been widely mentioned as being the motivating factor for the President's speech in front of Congress. Eisenhower felt that if he had a strong stance against the Soviet Union, this would help the Soviets from advancing into different continents and implementing their Communist views.
It was the main route where the Southern states received food and supplies towards the various states in the confederacy.