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Home Q & A Board Biology-Related Homework Help Medicine Pharmacology (Moderator: DelightfulMind)
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aureliastev13 aureliastev13
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6 years ago
The breathing center is located in the
 A) spinal cord.
  B) cerebrum.
  C) brain stem.
  D) thalamus.


Which of the following is true regarding hypersensitivity reactions?
 A) They usually occur from first-time exposure to an antigen.
  B) There are four types (I-IV) of sensitivity reactions.
  C) They can occur without exposure to an antigen.
  D) Both a and b are correct.
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TheInquisitor57TheInquisitor57
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6 years ago
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aureliastev13 Author
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6 years ago
Just got PERFECT on my quiz
missnoname
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Yesterday
I appreciate what you did here, answered it right Smiling Face with Open Mouth
acaruso
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2 hours ago
Smart ... Thanks!
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