Reticulocytes may also be called

$A$ patient has type $A$ blood and needs a blood transfusion. Type $A$ blood is not available. Which of the following blood types could be substituted without causing harm to the patient?

Prothrombin is a

Universal donors have no antigens on $RBC$s and have both $a$ and $b$ antibodies. They belong to blood group:

The cells present in the liver that act as phagocytes are known as .......

Properties of leucocytes are:
$I$. They are nucleated.
$II$. They are denucleated like $RBC$.
$III$. They are $6000-8000 \; mm^{-3}$ of blood.
$IV$. They are long-lived.
$V$. They are short-lived.
Choose the appropriate option with correct properties.