a)What is blood?why is it red in colour b) name a circulatory fluid in the human body other than blood
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haemoglobin is the reason why blood is red in colour . lymph ,plasma are the fluids in the human body other than blood
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a)Blood is red because it is made up of cells that are red, which are called red blood cells.Within the red blood cells there is a protein called hemoglobin. Each hemoglobin protein is made up subunits called hemes, which are what give blood its red color.
b)lymph ,plasma are the fluids in the human body other than blood
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