Answer:
False and true (i'm not sure fully)
Explain:
- (False) Expiration is usually a passive mechanism that occurs when the diaphragm muscle relaxes (that contracted during inspiration). The elastic recoil of the lungs is the primary cause for passive expiration.
- (True)Despite the fact that oxygen dissolves in the blood, only a small amount is transferred this way.
Inside the air sacs, oxygen flows through paper-thin walls to tiny blood vessels known as capillaries, where it is absorbed into the blood. The oxygen is then transported throughout your body by a protein called haemoglobin, which is found in red blood cells.
hope this helps!!!
