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What do you mean by heart beats and blood group and blood pressure

What do you mean by heart beats and blood group and blood pressure

Grade:12

1 Answers

abhishek
33 Points
4 years ago
One complete contraction and the relaxation of the heart is called heart beat and the pressure at which the blood is pumped around the body by the heart is call blood pressure and blood group depends upon antigens and antibodies 4 type of blood group are found in human beings A,B,AB,O and O is universal Donor and a b is universal recipient

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