Nucleus is the most important factor of a cell
The greatest benefit from cardiorespiratory fitness is received through the activation of skeletal muscles and skin tissue. - C.
This is the correct answer and the best benefit of cardiorespiratory fitness because it improves our bodily functioning and helps us maintaining a young body.
The healthy recommendation is 45-65%, however, complex carbs will be more beneficial to the body rather than simple carbs.
