Name the following:

The vein in which urea concentration is maximum.

Name the following:

The tuft of capillaries inside the Bowman's capsule.

Name the following:

The part of kidney tubules where the term urine is first used for the fluid in it.

Given below are two sets (a and b) of five terms each.

Rewrite the terms in their correct order so as to be in logical sequence.

(a) Afferent arteriole, renal vein, capillary network, glomerulus, efferent arteriole.

(b) Renal artery, urethra, ureter, kidney, urinary bladder.

In each one of the following sets of body parts or substances or processes, pick out the one item which overall includes the remaining four

(a) Glomerular filtrate, Bowman's capsule, ultrafiltration, glomerulus, blood plasma.

(b) Skin, liver, lungs, kidneys, excretion.

(c) ADH, water, pituitary, osmoregulation, urine.

(d) CO₂, bile pigments, water, excretion, urea.