Alveoli small balloon-like structures which are responsible for the oxygen exchange in the lungs across the membranes. These are attached to the branches of the bronchial passages. These alveoli inflate and deflate with inhalation and exhalation. Answer is C.
Answer:
20
Explanation:
Approximately 80% of our water intake comes from drinking water and other beverages, and the other 20% comes from food.
