Final answer:
Checks and balances is the term that evolves as the federal government makes and enforces policy. It ensures power is not concentrated in one branch and requires different parts of the government to work together.
Step-by-step explanation:
The term that evolves as the federal government makes and enforces policy is Checks and balances. Checks and balances is a core democratic principle in American government, where each branch of the government (executive, judicial, and legislative) has some measure of influence over the other branches and may choose to block procedures of the other branches. It ensures that power is not concentrated in one branch and requires the different parts of the government to work together.