Category:Excretion

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

excretion 
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.
Yrabiological process
Poklasissystem process
Authority control
Vikidata
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