What term refers to a system which one branch of government is prevented from seizing too much power

What changed for the seminole indians of florida during the 1930s

Match each model with its name and the name of the scientist who created it.

How would high tariffs hurt america? a. fewer immigrants would be able to move to america b. sales of american products to other countries would go down c. americans would sell more goods to other countries d. goods imported from other countries would cost less