Sparkly, I don’t claim to be an expert in physiology or medicine, but I don’t need an A&P textbook in front of me to know that UV radiation causes skin cancer. and that melanin protects from UV.
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Sparkly, I don’t claim to be an expert in physiology or medicine, but I don’t need an A&P textbook in front of me to know that UV radiation causes skin cancer. and that melanin protects from UV.