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Author Question: What are unstable oxygen-containing molecules that can damage cells called? A. antioxidants B. ... (Read 111 times)

rlane42

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What are unstable oxygen-containing molecules that can damage cells called?
 
  A. antioxidants
  B. cataracts
  C. coenzymes
  D. free radicals

Question 2

Which of the following vitamins plays an essential role for healthy eyes?
 
  A. vitamin K
  B. vitamin C
  C. vitamin A
  D. vitamin D



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af

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Answer to Question 1

ANS: D

Answer to Question 2

ANS: C



rlane42

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Both answers were spot on, thank you once again



af

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Urine turns bright yellow if larger than normal amounts of certain substances are consumed; one of these substances is asparagus.

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There used to be a metric calendar, as well as metric clocks. The metric calendar, or "French Republican Calendar" divided the year into 12 months, but each month was divided into three 10-day weeks. Each day had 10 decimal hours. Each hour had 100 decimal minutes. Due to lack of popularity, the metric clocks and calendars were ended in 1795, three years after they had been first marketed.

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During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).

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Common abbreviations that cause medication errors include U (unit), mg (milligram), QD (every day), SC (subcutaneous), TIW (three times per week), D/C (discharge or discontinue), HS (at bedtime or "hours of sleep"), cc (cubic centimeters), and AU (each ear).

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Though “Krazy Glue” or “Super Glue” has the ability to seal small wounds, it is not recommended for this purpose since it contains many substances that should not enter the body through the skin, and may be harmful.

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