[[Uric acid]] is the main form of nitrogenous waste with lesser amounts of ammonia and urea depending on the species, the natural environment and degree of water conservation required. [[Uric acid]] is [[Lizard and Snake Excretion|excreted]] by tubular secretion rather than urea by glomerular filtration | [[Uric acid]] is the main form of nitrogenous waste with lesser amounts of ammonia and urea depending on the species, the natural environment and degree of water conservation required. [[Uric acid]] is [[Lizard and Snake Excretion|excreted]] by tubular secretion rather than urea by glomerular filtration |