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OpenStudy (anonymous):

The center of hemoglobin is made of which of the following? calcium magnesium water iron Why is hemoglobin important? It transports oxygen It fights disease It filters out dust and dirt from the air It forces blood through the body Platelets thicken blood and help it to clot. True False

OpenStudy (anonymous):

@Trojan

OpenStudy (anonymous):

I don't know q1. q2 is a. q3 is true.

OpenStudy (anonymous):

thanks

OpenStudy (anonymous):

Iron, transports oxygen, true

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