cardiovascular
excretory system
The excretory system signed: alexis.a
The Respiratory system is very closely linked with the circulatory system.
I think it is Respiratory System...
It prevents food from going to the respiratory system
The main function of the respiratory system is the exchange of gases. It brings in oxygen and elmiinates carbon dioxide.
The main function of the respiratory system is the exchange of gases. It brings in oxygen and elmiinates carbon dioxide.
The respiratory system cannot function without the windpipe.
Breathing
The main function of the respiratory system is to provide the body with a constant supply of oxygen.
air passage
Gas exchange