The skin tans in response to sunlight because of the release of ________.

Question

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Melanin is a pigment produced by cells called melanocytes, which are located in the epidermis of the skin. When the skin is exposed to sunlight, melanocytes release more melanin to provide protection against harmful UV rays. This results in the skin becoming darker or tanned. Keratin is a protein that makes up the outer layer of the skin, while sebum is an oily substance that helps to moisturize the skin. Collagen is a protein that gives skin its strength and elasticity.

The Skin Tans in Response to Sunlight Because of the Release