Given figure is of longitudinal section of kidney. Identify the parts labelled as A to D and select the correct option.
Differentiate between the following pairs of terms :
(a) Bowman's capsule and Malpighian capsule.
(b) Renal cortex and renal medulla.
(c) Renal pelvis and renal papilla.
(d) Urea and urine.
(e) Excretion and Catabolism.