why the human blood is red?

Pakistan
March 12, 2007 9:16am CST
why the human blood is red?
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3 responses
@uath13 (8192)
• United States
12 Mar 07
The hemoglobin in the blood is red. Please tell me I don't have to explain the reflection of light producing colors.
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• Philippines
12 Mar 07
Try to search the definitionof the term: "HEMOGLOBIN"at any search engines. It would help you a lot.
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• Pakistan
12 Mar 07
the heomoglobin is red therfore
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