litres - Each person has got 4-6 ................. of blood. , oxygen - The blood supplies the whole body with .............. , cells - The blood is red because of the red blood ................., groups - A, AB, O and B are blood .................. . , plaster - When you have an injury put a ............... on it. , red - ........... blood cells carry oxygen. , white - .............. blood cells are the defence of your body. ,

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