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Hemoglobin carries oxygen to the body's cells. Which system contains hemoglobin? A. nervous B. endocrine C. respiratory D. circulatory
Hemoglobin carries oxygen to the body's cells. Circulatory system contains hemoglobin.
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Asked 12/18/2015 8:59:24 AM
Updated 12/18/2015 9:14:24 AM
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Confirmed by jeifunk [12/18/2015 9:14:24 AM]
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Updated 12/18/2015 10:00:34 AM
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If a change in the body causes more change, but in the opposite direction the system is called: negative feedback.
Added 12/18/2015 10:00:34 AM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [12/18/2015 10:29:57 PM]
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