Explain why a law is accepted as fact, but a theory is not. Theories are not accepted as fact because new information or technology can show that the theory is incomplete or incorrect. A law is accepted as fact because it is a statement of what will happen and no exceptions have ever been found.
Skeletal muscle moves bones and other structures. Cardiac muscle contracts the heart to pump blood. The smooth muscle tissue that forms organs like the stomach and bladder changes shape to facilitate bodily functions.