The blood leaving the kidney is significantly lower in:

$A$: Birds have metanephric kidneys and no urinary bladder.
$R$: South American Ostrich has a urinary bladder.

The primary function of the kidney is ........ .

$A$: Pregnant women may show some presence of glucose in their post-prandial urine although they have no diabetes.
$R$: In pregnant women,the glomerular filtration rate $(GFR)$ is slightly increased. As a result,the tubular load of glucose exceeds the tubular maximum for glucose reabsorption.

An adult human excretes,on average,... liters of urine per day. On an average,... of urea is excreted out per day.

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