Air is warmed and moisturized as it enters your nose or mouth as your lungs expand. It then passes through your windpipe and into your bronchial tubes, which connect your windpipe to your lungs. When air reaches your lungs, it passes via the alveoli (air sacs) and into your bloodstream.
To help people in South Africa, unity and help them remember where they stand today.
Answer:
C
Explanation:
Oxygen moves through our airway tract and goes down to the alveoli which are sacs for air to go in. Oxygen then moves through the capillaries and that's where Red blood cells pick up O2 and release CO2 to be expelled during exhalation.
Deformations of collagen elasticity, leading to Scurvy
