Fact 1: Muscle contraction occurs when muscle fibers get shorter. Fact 2: Muscles are bundles of fibers that can contract. Given the two facts above, answer the question "What contracts as it gets shorter?" with the following options: - layers of fat - Epidermis - Veins and arteries. - Shortstop - Labor - Contracts - the body's largest organ - Bundles of fibers
The answer to this question is:
Bundles of fibers