Question

How do the excretory and respiratory systems work together?

Answer 1

The excretory system helps the respiratory system by geting rid of carbon dioxide. The respiratory system helps the excretory system by getting rid of CO2 from the body.  

Answer 2

The respiratory system is important because it brings oxygen to cells in your body. But it also removes a waste, carbon dioxide. Another system in your body, the excretory system, also removes wastes. The excretory system moves waste from your digestive system and from your blood out of your body.