Distinguish between the Unitary and Federal systems of government.

A constitution can be either unitary or federal. A unitary system is governed constitutionally as one single unit, with one constitutionally created legislature. but in the federal constitution, there is a division of powers between the federal and the state governments. Here are some differences between the federal government and the unitary government.

Federal government	Unitary government
The system has multiple hierarchy levels, with both the central authority and the states (or provinces) both being sovereign.	There is no hierarchy of sovereign powers.
The central or national rules override the state rules.	States have no authority to pass their own laws, and the central or national government can order the states to do anything.
There is a balance between the levels of government.	The federal government has a huge percentage of power. Examples include Japan and Saudi Arabia.
Power and responsibilities are shared between national and local levels.	Power is placed in one central governing system