Question

define excretion. write two vital function of kidney.

Answer 1

The process of removal of harmful nitrogenous and metabolic waste products is called excretion.  Functions:  1)Regulation of water balance  2) Regulation of salt content  Mark brainliest.

Answer 2

Toxic wastes, which are produced in the body during the functioning of cells are harmful to the body& hence are out thrown from body through the excretion.Functions of kidneys:-Absorption of water and salt . Removal of waste materials like urea, ammonia etc from blood; blood pressure control.