Excretion of an important life process by which the metabolic and non-metabolic waste and other toxic substances from their body are expelled by an organism.
Waste can be in the form of solid, liquid or gas.
Plants also excrete wastes. For example – oxygen and water produced after photosynthesis are waste products for plants hence require removal.
Thiobacillus denitrificans is a denitrifying sulfur bacteria and it produces nitrogen gas as the excretory product.
The human excretory system organs include:
A pair of kidneys
A pair of ureters
A urinary bladder
A urethra
Final Answer:
Excretion is a process in which ammonia, urea, uric acid, carbondioxide, water, and ions like Na+, K+, Cl-, phosphate, sulphate, etc., are removed from the body as their presence exceeding certain amounts is toxic to the organism.
