Skin : keratin :: blood :?
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Keratinocytes produce keratin, a protein that gives skin its strength and flexibility and waterproofs the skinsurface. ... As new cells form, older ones are pushed toward the skinsurface. The epidermis does not have a direct blood supply; all nutrients that feed these cells come from the dermis
varuncharaya20:
hello
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its of course haemoglobin
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