Excretion is the process that biological organisms use to expel or eliminate the waste products produced by their metabolisms. In order for cells to survive, they need to perform certain biochemical reactions, as these reactions take place, some byproducts are formed which can be toxic or lethal to the cells if they are allowed to accumulate. The process of excretion collects these wastes, and rids them from the cellIn multicellular organisms, these wastes must then be excreted from the body.
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- Excretion: Substances to Be Eliminated