New Jersey Barber and Hairstyling Practice Exam

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Prepare for the New Jersey Barber and Hairstyling licensing exam with practice tests. Cover all topics with hints and detailed explanations. Enhance your chances of passing!

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The color of the skin depends on the melanin and?

Keratin levels
Sweat gland activity
Blood supply
Sebum production

The correct answer is: Blood supply

Melanin is responsible for determining the color of skin in humans. Keratin levels, sweat gland activity, and sebum production may influence the overall appearance and health of skin, but they do not play a direct role in determining its color. Melanin is produced by specialized cells known as melanocytes, which are located in the epidermis, or the outermost layer of skin. When these cells produce more melanin, the skin appears darker, while less melanin production results in lighter skin tones. The amount of melanin in the skin can also be affected by factors like genetics and exposure to sunlight. Therefore, the color of skin is primarily dependent on melanin and the amount of blood supply present in the skin.