_____________protects the skin against ultraviolet rays.

Correct option is A

The correct answer is (A) melanin

Explanation:

Melanin is the pigment found in the skin that protects it against harmful ultraviolet (UV) rays by absorbing and dissipating UV radiation. It helps prevent damage to the skin cells and reduces the risk of skin cancer.

Information Booster:

• Melanin is produced by special cells called melanocytes in the skin.

• It acts as a natural sunscreen by absorbing UV radiation and reducing the penetration of harmful rays into deeper skin layers.

• Darker skin has more melanin, which provides better protection against UV rays compared to lighter skin.

• The amount of melanin in the skin can increase with exposure to sunlight, resulting in tanning.

• Melanin also gives skin its color, with higher melanin levels resulting in darker skin tones.

• This natural protection helps minimize the risk of skin damage, sunburn, and long-term issues like premature aging and skin cancer.

Additional Information:

• Elastin  – Elastin is a protein in the skin that helps it stretch and return to its original shape, but it does not protect against UV rays.

• Dermis  – The dermis is the middle layer of skin that contains blood vessels, nerve endings, and connective tissue, but it does not protect against UV rays.

• Oxytalan  – Oxytalan is a component of the skin's connective tissue, specifically fibers that support the structure of the skin, but it does not have a role in protecting against UV rays.