If a person has a low red blood cell count,which stage of respiration would not be able to function efficiently?

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External respiration is gas exchange between the air and the blood within the lungs.In humans,red blood cells transport oxygen from the lungs to the tissues.Internal respiration is gas exchange between the blood and the tissue fluid.In other words,the body's cells exchange gases with the tissue fluid.The blood then transports carbon dioxide to the lungs.If a person has a low red blood cell count then both external and internal respiration would not function efficiently.

If a Person Has a Low Red Blood Cell Count,which