Which of these structures or substances in the skin helps prevent UV radiation from damaging deep structures of the skin?
A. Sebaceous glands
B. Melanin
C. Keratinocytes
D. Keratin
E. Collagen fibers
B. Melanin
Melanin is a pigment that absorbs UV radiation from sunlight and prevents the radiation from harming structures in the skin's underlying layers.
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Which type of lever favors speed and distance over power and is commonly found in the human body?
What will be an ideal response?
A patient has been bitten by a nonpoisonous grass snake. Your care would include:
A) Cleaning and dressing the wound B) Administering epinephrine C) Applying a constricting band D) Emergency transport to the hospital with lights and sirens
Physicians have the right to establish their fees at a level that they believe fairly reflects the costs of providing a service
Indicate whether this statement is true or false.
Define epigenetics.
What will be an ideal response?