Match the following:
Types of leucocytes | Function
$A.$ Neutrophils | $1.$ Heparin and histamine secretion
$B.$ Basophils | $2.$ Antibodies formation
$C.$ Acidophils | $3.$ Scavenger
$D.$ Monocytes | $4.$ Phagocytes
$E.$ Lymphocytes | $5.$ Antiallergic and healing of wounds
The correct pairing sequence is:

Donnan effect is shown by

$A$: In an open circulatory system,the volume of blood is high,but blood pressure is low and irregular.
$R$: In a closed circulatory system,the volume of blood is limited,and blood pressure is high and regular.

Which one of the following is a matching pair of a certain body feature and its value/count in a normal human adult?

Match the following:
Disease: Cause
$A.$ Diabetes: $6.$ Increase in blood sugar level
$B.$ Uraemia: $7.$ Urea is in excess in blood
$C.$ Anaemia: $5.$ Fall in $RBC$ count
$D.$ Polycythemia: $3.$ Rise in $RBC$ count
$E.$ Pernicious or Megaloblastic anaemia: $2.$ Deficiency of vitamin ${B_{12}}$
$F.$ Leukemia: $8.$ Pathological increase in $WBC$
$G.$ Thrombocytopenia: $9.$ Decrease in the number of platelets
$H.$ Leucopenia: $4.$ Fall of $WBC$ count
$I.$ Leucocytosis: $1.$ Rise in $WBC$ count
The correct matching sequence is: