It helps people survive and live a normal life.
The most important system in the upper and lower body is the Circultory System
immune system
Respiration
The hagoo system
it is important because your thing is cool
the nerve system is important b/c it controls all the thins in the body!!!!!!!
The least important system in the body is arguably the scalp hair. It only serves as a means to look good and to attract the other sex.
It's the system that helps carry oxygen into our body's and we need oxygen in our body
Really, everything in your body plays an important role.
its transports nutrients to the body and take waste out
The 4 important systems of the human body is the skeletal system, digestive system, muscular system and circulatory system.
Your skeletal system is one of the most important systems in your body. It is the foundation for your body and if you didn't have it, your body would be a pile of flesh and guts.