- The liver takes in blood from the rest of the body - The liver uses enzymes to clean the blood - The cleaned blood is expelled - The liver creates bile from the items filtered - The liver takes energy and stores it as glycogen What might be the last step of the process?
Ans: The bile is sent to the intestines.

- You inhale - The air enters the mouth and nose - The diaphragm contracts - Air fills all the sacks in the lungs - Oxygen passes through the sacks into capillaries - The blood is passed to the blood in the capillaries - The blood carries the oxygen to the heart What might be the last step of the process?
Ans: The heart pumps the oxygenated blood to the body.

- They expand to take the air in - The cells of the lung hold the air - They take in the air and remove the Oxygen - They inflate and all the bad air leaves through the mouth What might be the last step of the process?
Ans: They do it all over again.

- Air enters the lungs through bronchial tubes - Air enters bronchioles - Bronchioles have tiny air sacs called alveoli - Alveoli surrounded by small blood vessels - Oxygen absorbed by small blood vessels - Vessels deliver oxygen to every cell in the body - Blood brings carbon dioxide back to lungs What might be the last step of the process?
Ans: Carbon dioxide released when you exhale.