In ureotelic animals, urea is formed by the [1997, 2000] (a) Arginine cycle (b) Cori’s cycle (c) Ornithine cycle (d) EM pathway
Option C. Disposal of ammonia excreted from the water in the form of aquatic animals and from uric acid in the form of reptiles and birds, and from urea in the form of nontoxic, water soluble products such as mammals.
