Why do skeletal muscles work in pairs? a. one tightens and the other relaxes to make the bones move. b. multiple muscles have to tighten to make joints move. c. they cancel each other out. d. bones are resistant to movement.

-an amendment is proposed.

-two-thirds of congress must approve.

-thee-quarters of states must approve.

-the proposed amendment becomes law.

hope this

basic principles: federalism, separation of powers, checks and balances, judicial review, representative democracy, limited government, rule of law, individual rights and responsibilities, consent of the governed, majority rule, popular sovereignty, equal protection.