The correct answer is this one: "A.When actin filaments are pulled toward the center of the sarcomere, the fiber shortens." The statement that accurately describes the way in which a muscle moves is when actin filaments are pulled toward the center of the sarcomere, the <span>fiber shortens</span>
Light is the energy source for plants synthesis of simple sugar in plants.
If you're asking what 'controls' the cell, then that would be the nucleus. The king of the cell.
