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AQA GCSE - B4.5 Respiratory system OVERVIEW
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Here we go through the core concepts about the human respiratory system. You need to learn what the respiratory organs are, the mechanism of breathing and be able to explain how the alveolus is adapted for efficient gas exchange.
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Please like, share and subscribe for more content and comment below to let me know what you think! :)
Facebook: BioRach - A-level Biology Online
Twitter: @BioRachProject
Background music:
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