The major function of retinol (vitamin A) is in:
A. the retina of the eye
B. protecting from cancer
C. stopping hair loss
D. digestion
A
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The suffix -plasty indicates:
A) Surgical repair. B) Bursting of blood. C) Flowing discharge. D) Blood condition.
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Which of the following is a basic function of the respiratory system?
A) To provide olfactory sensations B) To produce sounds C) To provide a large area for gas exchange D) All of the above
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