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Alveoli Student activity
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Gas exchange in the lungs Student activity
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Inhalation and exhalation Whiteboard exercise
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Lung structure Student activity
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Nicotine Slideshow
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Nicotine Student activity
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Smoking and health Student activity
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Tar Animation
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Tar Student activity
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The digestive system Student activity
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The mechanism of breathing Student activity
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The respiratory system Student activity
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The respiratory system Student activity
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Resources: 1 – 15 Total: 15
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