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aleja98 aleja98
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6 years ago
Sunlight shining on your skin increases your body's own manufacture of which vitamin?
 
  A) Niacin B) Vitamin A C) Vitamin K D) Vitamin D
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TSparkman10TSparkman10
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6 years ago
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aleja98 Author
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6 years ago
This site is awesome
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Yesterday
Good timing, thanks!
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2 hours ago
Brilliant
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