[Q]: Tom and Andy are two old friends. Tom was infected with HIV 20 years ago, and Andy has been helping him ever since. Andy is as healthy as an ox. Which friend has a stronger immune system?
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[A]: Andy

[Q]: Monica and Jill are two friends. They study and party together most of the time. One day Monica shared a needle with a drug addict at a party. She later found out that she'd been infected with HIV. Jill was scared and helped her as much as she could. Which friend doesn't have the virus that causes Acquired Immunodeficiency Syndrome?
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[A]: Jill

[Q]: Czar Nicholas was the last Romanov who ruled Russia. Al along he was in good health, but that was not the case with his son Prince Alexei. While Nicholas was free from hemophilia, a disease that devastated European royal families, Alexei was born with hemophilia. Many suggest this situation made some opportunists to take advantage of the Czar. Who would have decreased risk of internal bleeding, Nicholas or Alexei?
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[A]: Nicholas

[Q]: Two brothers had very different diets. Vick would constantly eat foods high in fat and would frequently overeat. Zack on the other hand, had a higher metabolic rate, a faster metabolism, and he would eat the correct amount of calories. Which brother stored less unused energy as body fat?
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[A]:
Zack