excretion

Question 1

define excretion.

Answer 1

the biological process involved in the removal of harmful metabolic wastes from the body.

Question 2

name the organs of human excretory system.

Answer 2

1. kidney
2. ureter
3. urinary bladder
4. urethra

Question 3

functions of kidney.

Answer 3

1. removes nitrogenous wastes from blood.

2. maintains water and ionic balance.