oxygen
The circulatory system takes up oxygen, and releases carbon dioxide.
The pulmonary circulatory system is involved in the process of moving carbon dioxide from the blood.
The respiratory system takes in oxygen and releases carbon dioxide. It works closely with the circulatory system.
In the alveoli
It helps plants and animals live. It also is apart of the circulatory system.
The respiratory system; the lungs.
lungs
Carbon dioxide
The respiratory system does "take away" carbon dioxide by replacing it with oxygen, through breathing. Exhaling causes the body to expel carbon dioxide and inhale oxygen.
Circulatory
circulatory
the lungs