Why blood cells are red



Hello friends how are you you think that why our blood is red don't worry I explain




You all known that in our blood  Hemoglobin, oxygen and iron found and 
Iron react with oxygen and blood became
Red but but some mammals have blue color blood do you think why I explain 


Suppose that in our blood iron is less and 
Copper property is more so our blood become blue because copper react with oxygen so copper+ oxygen= blue


 So you can understand this funda Bey Bey


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