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The skin has 2 layers: epidermis (the outer) and dermis (the inner). Sliding down the rope may cause an abrasion in which only the epidermis is damaged. Scars develop only when the dermis is damaged. Fingerprints (Britannica): Each ridge of the epidermis (outer skin) is dotted with sweat pores for its entire length and is anchored to the dermis (inner ...


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