I think the circulatory system is the best body system because we need the heart to stay alive, many people live with only one lung. but we need the respiratory system to let oxygen in, and let carbon dioxide out.
Answer:
benefits are lot
it makes us healthier and stronger
it makes us fit
it makes us a good mental system
Answer:
The most important step is to rub your hands thoroughly especially between your fingers
Eukaryotes
Hope this helps xox :)
