Which of the following is $NOT$ a function of the kidney?

Match the items of column $I$ with those of column $II$:

Column $I$	Column $II$
$(a)$ Ammonotelism	$(i)$ Birds
$(b)$ Bowman's capsule	$(ii)$ Water reabsorption
$(c)$ Micturition	$(iii)$ Bony fish
$(d)$ Uricotelism	$(iv)$ Urinary bladder
$(e)$ $ADH$	$(v)$ Renal tubule

Assertion : Secreting hypotonic urine is effective in reducing urinary loss of water.
Reason : Hypotonic urine is more concentrated and higher in osmotic pressure than the blood.

Choose the correct pair regarding urine formation.

Consider the following water conservation mechanisms:
$A.$ Nasal countercurrent mechanism
$B.$ Dependence on metabolic water
$C.$ Highly hypertonic urine
$D.$ Living more on protein-rich diet
The kangaroo rat living in the desert can survive without drinking water because of:

The given figure shows the human excretory system with parts labeled $A$ to $D$. Select the option that correctly identifies these parts and describes their characteristics or functions.