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dsvcbhdjnskl dsvcbhdjnskl
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6 years ago
There are often large minute-to-minute fluctuations in the levels of a person's circulating hormones. These fluctuations are often the result of
 
  A) pulsatile hormone release.
  B) negative feedback.
  C) positive feedback.
  D) testosterone.
  E) the adrenal medulla.
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wrote...
6 years ago
Answer: A
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