Federalism is a system of government whereby power is divided between the federal, state, and local governments. This principle was one of the founding principles of the United States. The separation of powers is the concept whereby the Federal Government's power is divided between the Executive Branch, the Judiciary Branch, and the Legislative Branch.
a. the interaction between social organization and social behavior
Answer: NATURAL LAW.
Explanation: Natural law in philosophy can be said to be an ethical theory that posits the existence of a law whose content is set by nature and has validity everywhere.
The law of nature is implied to be objective and universal. In essence, it exists independently.
Humans instinct that inclines them to protect themselves from harm can be termed natural law. This is because, this act is VALID for every single human in the world and is OBJECTIVE. Validity and objectivity being the key words of natural laws.