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Across 2. main nitrogenous waste of insects, reptiles, and birds (2 Words) 4. tubular structure conducting urine from the kidney to the urinary bladder 5. main nitrogenous waste of terrestrial amphibians and most mammals 6. ubular structure that receives urine from the bladder and carries it to the outside of the body

Down 1. organ where urine is stored (2 Words) 3. liquid waste product made by the nephrons of the vertebrate kidney through the processes of glomerular filtration, tubular reabsorption, and tubular secretion