The shape of the nucleus of $WBC$ is usually

Blood platelets are found only in the blood of ...

Antibody formation and immunity production is done by a protein called globulin present in the

Identify the cells and their functions based on the provided figure:
$(a)$ Fig. $A$ - Megakaryocyte - formation of platelets
$(b)$ Fig. $B$ - Lymphocyte - synthesis of antibodies
$(c)$ Fig. $A$ - Eosinophil - secrete antihistamine
$(d)$ Fig. $A$ - Neutrophil - secrete heparin

If a mother possesses only '$B$' antibodies (implying blood group '$A$') and the father has blood group '$O$',what will be the possible blood group$(s)$ of the child?

Diapedesis is the characteristic feature of