Name the following. 5 marks
1. The microscope air sacs of the lungs .
2. Disease caused due to the deficiency
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1. Alveoli are microscopic air sacs served by the bronchioles. Hundreds of million of alveoli exist inside each lung. They are the terminal ends of the respiratory tract and the sites of external respiration- the exchange of gases between the air and the bloodstream.
Vitamin deficiency
A deficiency of one or more essential vitamins.
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