From Wikimedia Commons, the free media repository
Jump to navigation Jump to search

Excretion is the process by which waste products of metabolism and other non-useful materials are eliminated from an organism.

The elimination by an organism of the waste products that arise as a result of metabolic activity. These products include water, carbon dioxide (CO2), and nitrogenous compounds.
Wikipedia-logo-v2.svg Wikipedia
Instance ofbiological process
Subclass ofsystem process
Authority control
Blue pencil.svg