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The process of breathing - Respiration and gas exchange systems - KS3 Biology – BBC Bitesize - BBC Bitesize
![Arrange the given steps of respiration mechanism in the order they occur in (I) Diffusion of gases across the alveolar membrane (II) Diffusion of O(2) and CO(2) between blood and tissue (III) Arrange the given steps of respiration mechanism in the order they occur in (I) Diffusion of gases across the alveolar membrane (II) Diffusion of O(2) and CO(2) between blood and tissue (III)](https://d10lpgp6xz60nq.cloudfront.net/web-thumb/393255971_web.png)
Arrange the given steps of respiration mechanism in the order they occur in (I) Diffusion of gases across the alveolar membrane (II) Diffusion of O(2) and CO(2) between blood and tissue (III)
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