How did the United States attempt to prevent the spread of communism to Grenada? by using U. S. troops to invade after the prime minister was removed by radicals by forming an alliance with Cuban rebels by sending monetary support to the Grenadian government by using U. S. troops to remove the communist leadership in Grenada

name two ways organisms join a population and two ways organisms leave a population. two ways organisms join a population are birth rate and immigration. two ways they leave are death rate and emigration.

explanation:

to replace ineffective because   andrew jackson's spoil system was a deliberate policy after he became president to remove federal employees he considered to be political opponents and replace them with his own supporters.