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February 28, 2015

Homework Help: Science Plzz Help

Posted by Mstv on Monday, June 2, 2014 at 2:28pm.

2. Which of the following best describes the function of the endocrine system?

A. It secretes chemical messengers that travel through the blood to signal changes at target cells.
B. It binds chemical messengers that travel through the blood from target cells.
C. It releases electrical impulses that travel through body cells to signal changes at target cells.
D. It converts chemical messages into electrical impulses to signal changes at target cells

My Answer : A

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