Answer:energy
Explanation:all activities of life including physical and chemical require energy to proceed
The answer is B , because your stress decreasing can not cause a disorder
FALSE
A sperm cell always has more mitochondria than a skin cell.
Why? The sperm's midpiece contains many mitochondria so that a supply of energy is available for the sperm to perform its function of traveling to and later fertilizing the egg.
Could u give me Brainliest answer plz