Answer:
blood and circulation
Step-by-step explanation:
Our lungs are most dependent on Blood and Circulation for the delivery of oxygen from our lungs to tissues. The lungs are responsible for the uptake of oxygen from the air we breathe and the elimination of carbon dioxide from the body. However, the delivery of oxygen to tissues requires the circulatory system to transport oxygen-rich blood throughout the body. The pulmonary veins carry oxygen-rich blood from the lungs to the heart, where it is then pumped to the rest of the body through arteries and capillaries. The blood then delivers oxygen to the tissues and organs in need before returning to the lungs to release waste products and gather further oxygen.