Respuesta :
The circulatory system:the body’s delivery system that circulates blood to deliver oxygen and nutrients to every part of the body.
The digestive system:to turns food into something useful so your cells can turn it into energy.
The endocrine system:it regulates coordinates, and controls a number of body functions by secreting chemicals into the bloodstream.
The digestive system:to turns food into something useful so your cells can turn it into energy.
The endocrine system:it regulates coordinates, and controls a number of body functions by secreting chemicals into the bloodstream.
