Haemoglobin contains

$Thrombocytes$ are cell fragments rather than true cells.

Persons with $AB$ blood group can accept blood from persons of ........... blood group and the antibody in their blood plasma is.......

The most active phagocytic white blood cells are

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

The $\text{WBCs}$ which make up the maximum count amongst leucocytes are $:-$