they remove waste products from the body that might otherwise be harmful, like urine, or waste products from the digestive system.
excretory organ (an organ that separates waste substances from the blood and discharges them)
that is because Excretion is the process of eliminating waste products of metabolism and other non-useful materials
The excretory system usually consist of organs which produce waste. Examples are: The Kidneys (which filters our blood and sends the waste material to the bladder) The Bladder (which expels...