Author Question: The most common type of headache is the A) cluster headache. B) sinus headache. C) migraine ... (Read 74 times)

nmorano1

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The most common type of headache is the
 
  A) cluster headache.
  B) sinus headache.
  C) migraine headache.
  D) tension headache.

Question 2

An allergic response begins with exposure to a(n)
 
  A) antigen.
  B) antibody.
  C) toxin.
  D) pathogen.



nmyers

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Answer to Question 1

Answer: D

Answer to Question 2

Answer: A



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