Edexcel Gcse Biology/additional Science - Unit B2: The Components Of Life Foundation Tier Page 20
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3220
(i)
Describe the change in the number of red
blood cells during this ten-week training
period. (2 marks)
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(ii) Suggest the minimum training period this
athlete needs to produce the highest number
of red blood cells. (1 mark)
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(iii) State the function of red blood cells. (1 mark)
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