How does a system of checks and balances work? Give at least one example.

The best example of checks and balances is that the president can veto any bill passed by Congress, but a two-thirds vote in Congress can override the veto. Other examples include: The House of Representatives has sole power of impeachment, but the Senate has all power to try any impeachment.

The best illustration of balanced governance is that the president can reject any bill passed by Congress, yet a 66% vote in Congress can supersede the denial. Different models include: The House of Representatives has sole force of reprimand, yet the Senate has all ability to attempt any arraignment.

Explanation:

b: the establishment clause  

b: socialism  

food chain i would say only because there is competition on getting food and survival