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Author Question: Which of the following are the first to defend the body tissues against microbes that have ... (Read 125 times)

daltonest1984

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Which of the following are the first to defend the body tissues against microbes that have penetrated the outermost barrier?
 a. phagocytes
  b. antigens
 c. T-cells
 d. B-cells
 e. skin cells

Question 2

Deficiencies and excesses of vitamin A can both be fatal. How could an excess of vitamin A occur?
  1.Excess dietary beta-carotene
  2.Excess dairy product consumption
  3.Excess fish consumption
  4.Excess cereal consumption
  5.Excess use of supplements



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meltdown117

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Answer to Question 1

a

Answer to Question 2

5





 

Did you know?

An identified risk factor for osteoporosis is the intake of excessive amounts of vitamin A. Dietary intake of approximately double the recommended daily amount of vitamin A, by women, has been shown to reduce bone mineral density and increase the chances for hip fractures compared with women who consumed the recommended daily amount (or less) of vitamin A.

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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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