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

Complete the following:
$(a)$ Urinary excretion = tubular reabsorption + tubular secretion -..........
$(b)$ Dialysis fluid = Plasma -..........

The blood leaving the kidney is significantly lower in:

Which of the following diagrams is correct with regard to the proximal $(P)$ and distal $(D)$ tubule of the Nephron?

Analogy type question:
$(1)$ Blood filtered by kidneys per minute: $1100-1200 \text{ mL}$ :: $GFR$ in a healthy individual: ............
$(2)$ From sweat glands of the skin: Sweat is produced :: From sebaceous glands: ............

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: