Lesson 1: How does our respiratory system work?, Describe the physical process of breathing., Describe the process of gas exchange., Explain how the adaptations of cells and organs allow efficient gas exchange., Lesson 2: How can we investigate the effects of exercise?, Calculate means and ranges of data., Describe how to measure lung volume., Describe how to measure breathing and heart rate., Lesson 3: How do we release energy in our cells?, State the equation for aerobic respiration., Describe the transport of substances involved in respiration., Explain why organisms need to respire., Lesson 4: What is anaerobic respiration?, Describe the process of anaerobic respiration., Describe the effects of anaerobic respiration during and after exercise.,

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