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Integumentary System |authorSTREAM - Upload, Share and Search Presentations, Templates On authorSTR
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日期:2024-07-09
Skin Color: Skin Color Genetic Factors All humans have the same number of melanocytes How much melanin they produce is controlled by several genes Lack of pigment is ... Tissue Layers: Tissue Layers Epidermis Upper layer of the skin Dermis Has a blood ......看更多