Answer:
Exercise is important for the body to function properly.
Explanation:
Exercise helps a person to maintain the oxygen amounts in the body. Exercise, as such, enhances and regulates almost every system of the body including the nervous, respiratory, circulatory and hormonal systems.
The sympathetic division of the autonomic nervous system controls the physical activities in a person's body by detecting the low levels of oxygen and increasing amounts of carbon dioxide in the body.
Answer:
Each cell has a unique chemical composition
Explanation:
All the other answers are apart of the modern cell theory.
ATP - <span>this is the main energy storage and transfer molecule in the cell.</span>
