Excretion:
The process of getting rid of waste or removal of waste materials from body is called excretion.
Mode of Excretion:
Larger animals even the human beings remove these wastes in the form of fluids like urine and faecal matter. The removal of waste is necessary since these may be poisonous and harmful to the organism.
Smaller organisms like bacteria, amoeba (one celled animals) remove their waste through body surfaces.
