Excretion

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Across
  1. 4. Waste formed from the breakdown of proteins.
  2. 6. Maintenance of stable internal environment
  3. 7. Organ that store urine
  4. 8. Liquid waste excreted by kidneys
Down
  1. 1. Functional unit of the kidney
  2. 2. Organs that excrete carbon dioxide and water vapor
  3. 3. Waste produced from chemical reactions in cells
  4. 5. Capillary network inside Bowman's capsuleureter Tube carrying urine from kidney to bladder