Excretion

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Excretion

5 years ago

~0.3 mins read
        EXCRETION 
   This is the elimination of waste metablolic products in the body.
       Excretory waste products
  This includes carbon(IV) oxide, water and nitrogeneous waste. The nitrogeneous wastes are urea, uric acid and ammonia.
   *Urea is excreted by mammals and dogfish.
   *Uric acid which is insoluble in water is excreted by birds, reptiles and insects.
   *Ammonia is excreted by protozoa and bonyfish.
Nitrogeneous waste are by-products of protein.

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