1. Tardigrade
  2. Question
  3. Biology
  4. The barrier between the air in alveolus and blood in pulmonary capillary consists of 3 layers and its total thickness

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Q. The barrier between the air in alveolus and blood in pulmonary capillary consists of $3$ layers and its total thickness

Breathing and Exchange of Gases

Solution:

Correct answer is (c) much less than $1$ mm