In the body's immune system, the attack cells, called B cells, are manufactured in the bone ...

In the body's immune system, the attack cells, called B cells, are manufactured in the
 
  bone marrow.
  thymus.
  red blood cells.
  white blood cells.

Question 2

Antioxidants can be found in
 
  dairy products.
  vitamins A, C, and E.
  sea salt.
  oil-based laxatives.

Question 3

Vitamins A, C, and E are all
 
  free radicals.
  oxygen by-products.
  carcinogens.
  antioxidants.

Question 4

Which of the following statements about free radicals is true?
 
  Their association with the aging process is a myth.
  Antioxidants have little effect on the damage that can be caused by free
  radicals.
  Oxygen free radicals scramble DNA and produce errors in cell maintenance.
  All of the answers are correct.