In the previous module, you learned that respiratory system is made up of the organs in the body that help us to breathe. The respiratory system works with the circulatory system to provide rygen in the body and to remove the waste products of metabolism. It also helps to regulate the pH-level (acidity or basicity) of the blood. Respiration is the sequence of events that result in the exchange of oxygen and carbon dioxide between the atmosphere and the body cells
*di naman talaga question yan lods namimigay ako points hehe ​