1. The lungs’ function is to _______. A. Filter the oxygen that enters the body. B. Remove waste from the blood. C. Digest food. D. Pump blood to the different parts of the body.
2. _______ is a waste material that is removed by the body through the lungs. A. Oxygen B. Carbon Dioxide C. Gas D. Carbon oxide
3. Its main function is to process information and receive and send instructions to the different parts of the body. A. Kidneys B. Skeleton C. Brain D. Lungs