Explain the excretion procedure in fishes
Explain the excretion procedure in fishes?
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Fishes contain a pair of kidneys which filtrate the blood. Bony fishes excrete nitrogen as ammonia, NH3, (that is, they are ammoniotelic) and cartilaginous fishes excrete urea as nitrogen waste (that is, they are ureotelic, such as mammals and adult amphibians).
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