Question

blood colour is red . what is the reason​

Answer 1

Answer:

s

Explanation:

because of haemoglobin

Answer 2

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Human blood is red because of the protein hemoglobin, which contains a red-colored compound called heme that's crucial for carrying oxygen through your bloodstream. That's why blood turns bright cherry red when oxygen binds to its iron. Without oxygen connected, blood is a darker red color.