Answer & Explanation:
In 1859, Charles Darwin set out his theory of evolution by natural selection as an explanation for adaptation and speciation. He defined natural selection as the "principle by which each slight variation [of a trait], if useful, is preserved".
i looked it up ok salt
That is true because they wanted to go strait
On December 2, 1823, President James Monroe used his annual message to Congress for a bold assertion: ‘The American continents … are henceforth not to be considered as subjects for future colonization by any European powers.’ Along with such other statements as George Washington’s Farewell Address and John Hay’s Open Door notes regarding China, this ‘Monroe Doctrine’ became a cornerstone of American foreign policy. Secretary of State John Quincy Adams had played the most important role in developing the wording of the declaration, and he also influenced the doctrine’s overall shape.
