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Answers to Answers to IB Style Questions on alveoli:

Answers to IB Style Questions on Ventilation system & alveoli: Multi choice answers in bold One mark is awarded for a correct definition – (1 mark)The diffusion of oxygen and carbon dioxide through the walls of the alveoli. (6 marks) Alveoli diagram – 1 mark for each correct structure: Also 1 mark for each function (6 marks) TOTAL = 13

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