Question

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In bronchitis, the breathing system produces too much mucus. This might cause problems by?

a. blocking the blood vessels
b. increasing the amount of carbon dioxide in the lungs
c. making the wall of the capillaries thicker
d. slowing down the rate of diffusion of oxygen.

Support your answer with appropriate explanation.
Thank you.

Answer 1

d slowing down the rate of diffusion of of oxygen