Which function of the muscular system is best illustrated by the heart pumping blood throughout the day? hormone regulation support and strength involuntary movement or voluntary movement

Which of the following statements best distinguishes a hypothesis from a theory? a. theories are hypotheses that have been proved. b.hypotheses are guesses; theories are correct answers c. hypotheses usually are relatively narrow in scope; theories have broad explanatory power. d. theories are proved to be true; hypotheses are often contradicted by experimental results.