Cellular respiration is the process by which organisms use oxygen to break down food molecules to get energy for cell functions. Which of the following statements best ergia why this process is necessary in plant cells?

the answer is b & c i believe : )

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.

1 is the answer to this problem