The correct answer is: Mendel developed his laws of heredity.
The publication in 1866 of the laws formulated by Mendel on<em> the heredity of characters in sexual reproduction </em>was contemporaneous with the evolutionary hypothesis developed by Darwin in his book <em>On the origin of species by means of natural selection </em>in 1859.
In the beginning they would trade with the settlers but Some Indian tribes were friendly and some attacked the new settlers. Over time the Indians<span> saw settlers colonizing as </span>a<span> threat to </span>their people and were more often violent
Russia’s heavy losses in WWI quickened existing calls for a political revolution against the tsar, as corruption and economic stagnation left millions of Russians in misery. By contrast, America’s economy was booming during the same period, largely due to a system of free enterprise. Political “radicalism” and especially Russian “Bolshevism,” then, were seen as unnecessary and dangerous.