Biology · IGCSE · Edexcel · Pearson Edexcel International GCSE (9–1) Biology (Linear) — 4BI1 · Specification point · 2.48 · Structure and functions in living organisms · Gas exchange
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| Students should: |
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Humans |
2.48 explain how alveoli are adapted for gas exchange by diffusion between air in the lungs and blood in capillaries |