To prevent coagulation,blood stored in a blood bank contains a small amount of:

The most active phagocytic white blood cells are ...........

If glucose is to be injected into human blood,the property that must be matched with blood is

$A$ person with an unknown blood group under the $ABO$ system has suffered significant blood loss in an accident and requires an immediate blood transfusion. $A$ friend,who has a valid certificate of their own blood type,offers to donate blood without delay. What would be the blood group of the donor friend?

In mammalian $RBC$,the percentage of haemoglobin is

Detection of blood group is done by an agglutination test using antiserum. According to this: