Question

What is the basic unit of kidney called why is it composed of a cluster of very thin walled capillary?

Answer 1

the basic unit of kidney is called nephron.
the thin walls of the cappilaries help in easy filtration of blood in to the bowmans capsule .

Answer 2

Answer:the basic unit of kidney is called*nephrons*

It is composed of a cluster of very thin wall blood capillaries as these prevent blood cells and proteins,a mino acids etc. to pass through and the waste material like urea remain behind in the tubule and does not get reabsorbed by the capillaries