Which of the following is not a function of human skin?
a. It serves as a barrier to water loss.
b. It is the site of synthesis for vitamin A.
c. It is an excretory organ.
d. It plays a crucial role in thermoregulation of the body.
ANS: B
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A Incorrect: This is a function of the skin.
B Correct: The skin is a site of vitamin D synthesis.
C Incorrect: This is a function of the skin.
D Incorrect: This is a function of the skin.
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