Changes in the pattern of nitrogen excretion during the life cycle of the newt.
D000328:Adult; D000641:Ammonia; D000818:Animals; D001826:Body Fluids; D006801:Humans; D007814:Larva; D008018:Life Cycle Stages; D008675:Metamorphosis, Biological; D009584:Nitrogen / Q000378:metabolism*; D012455:Salamandridae; D014508:Urea; D014562:Caudata / Q000378:metabolism*
D000641:Ammonia; D014508:Urea; D009584:Nitrogen
NITROGEN/metabolism; SALAMANDERS/metabolism