• Biology,  Q & A,  Zoology

    Explain the excretory system in insects?

    Excretion Excretion is the process whereby an organism eliminates metabolic wastes and unwanted chemicals from its system. Metabolism is  the sum total of all the chemical reactions occurring in the cells and body. Some products of these metabolic reactions are toxic  and so must be processed or eliminated from the body. Others are simply materials that are present in excess and so must be  eliminated as waste. The process of excretion is quite different to defecation, which is the removal of undigested food wastes from  the gut. However, the gut of many animals also has a role in excretion as some materials may be excreted into the gut and  eliminated…


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