What are the different types of nitrogenous wastes in animals?
Animals excrete waste in different forms:
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Ammonia (Ammonotelic animals) – Highly toxic, requires large amounts of water (e.g., fish, amphibians).
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Urea (Ureotelic animals) – Less toxic, requires moderate water (e.g., mammals, amphibians).
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Uric Acid (Uricotelic animals) – Least toxic, excreted as a paste to conserve water (e.g., birds, reptiles).