Having more red blood cells at high altitudes increases the amount of haemoglobin, allowing individuals to load more oxygen in the lungs to compensate for the lower oxygen levels.
Having more red blood cells at high altitudes increases the amount of haemoglobin, allowing individuals to load more oxygen in the lungs to compensate for the lower oxygen levels.
| Front | People living at high altitudes have more red blood cells than people living at sea level. Explain the advantage of this to people living at high altitude. ( 2 marks) |
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| Back | More haemoglobin; So can load/pick up more oxygen (in the lungs); |
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