Without the digestive system we would not have the glucose for the chemical reaction of respiration and the circulatory system is used for bringing the oxygenated and deoxygenated blood to the...
The circulatory system takes oxygen from the lungs and carries it to organs such as organs in the digestive system. The organs then use the oxygen to help them function properly and give them energy.
The respiratory system provides oxygen so the body can "burn" (oxidize) the food that is brought into the body through the digestive system. The circulatory system brings nourishment to all cells of...
The digestive system takes in and uses food. This food is broken down. When broken down a part of it is called glucose and is used for respiration. Respiration produces energy, CO2 and water. the...