$A$ person with antigens '$B$' in $RBC$ and antibodies '$a$' (anti-$A$) in the plasma belongs to the blood group

Match the different types of leucocytes (Column-$I$) with their percentage of occurrence (Column-$II$) in a healthy adult and choose the correct answer.

Column-$I$	Column-$II$
$A$. Neutrophils	$(i)$ $6-8\%$
$B$. Lymphocytes	$(ii)$ $60-65\%$
$C$. Monocytes	$(iii)$ $0.5-1\%$
$D$. Basophils	$(iv)$ $2-3\%$
$E$. Eosinophils	$(v)$ $20-25\%$

The $Rh$ factor was first discovered in which organism?

Which of the following is an example of a buffer system in blood?

Blood cells involved in inflammatory reactions are

Match the following:

Column-$I$	Column-$II$
$(1)$ Neutrophil	$(a)$ Inflammation
$(2)$ Eosinophil	$(b)$ $6-8\%$
$(3)$ Basophil	$(c)$ Phagocytes
$(4)$ Monocytes	$(d)$ Resists infections