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Author Question: An allergen is best described as a: A) substance in the body that recognizes foreign materials. ... (Read 70 times)

kfurse

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on: Jul 3, 2018
An allergen is best described as a:
 
  A) substance in the body that recognizes foreign materials.
  B) chemical released by cells in the body to fight foreign materials.
  C) chemical messenger in the body that activates the immune system when there is a foreign material present.
  D) foreign substance that causes a hypersensitivity reaction in the body.

Question 2

Activase is used to:
 
  a. break down thrombi.
  b. dilate blood vessels to reduce blood pressure.
  c. decrease the formation of platelet plugs.
  d. interrupt the clotting cascade.


Dinolord

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Reply #1 on: Jul 3, 2018
Answer to Question 1

D

Answer to Question 2

a


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