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Which of the following classes of hormones uses second messengers, such as calcium and cyclic-AMP, to...

Which of the following classes of hormones uses second messengers, such as calcium and cyclic-AMP, to mediate target-cell responses?

A- peptide

B- steroids

C- thyroids

D- none of above

E- 1 ans 3

Science   Anatomy-And-Physiology   
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Answer #1

Correct answer is A.

Peptide

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