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Biology A2 Urgent Help required.... Please And thanx

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Describe how the kidney removes metabolic wastes from the body.. (9 marks) I want a detailed answer. Please and thanks.
 
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You should give a reading from OCR Biology

And for the rest I'll just guide you ... You should be mentioning Ultrafiltration and selective re-absorption in detail till the removal of metabolic wastes ...
Do mention the selective reabsorption in every part with particular reference to urea reabsorption + glucose + minerals and stuff....
Hope that helps... and yeah do consult the marking scheme for any missed out points ;)
 
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