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OpenStudy (anonymous):

Which mineral is known for transporting oxygen in blood? A. iron B. zinc C. copper D. calcium I do believe that it is iron

OpenStudy (anonymous):

@OrangeMaster

OpenStudy (anonymous):

Yeah, Iron is right.

OpenStudy (anonymous):

awesome thanks just wanting to make sure :)

OpenStudy (anonymous):

Better safe than sorry.

OpenStudy (anonymous):

lol right I need to pass this class real bad

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