Concurrent Powers - shared by all levels of Government
Implied Powers - that are not written in the Constitution but assumed through the Necessary and Proper Clause
Checks and Balances - idea that all levels of Government must work together to govern
Civil Rights - full citizenship and equality under the law
Civil Liberties - freedom to think and act without Government interference
Sorry, I don't know the answers to the short answer questions. I don't know anything about the American legal system