The graph shows data from a brick being pushed along a concrete surface. A. Some of the energy was destoryed
B. The energy was used up so it no longer exists

C. The energy transformed into thermal energy
D. The brick had no energy once the force had been removed

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.