- Lungs would be waste from respiration is carbon dioxide.
- The kidney is responsoble for the excretion of excess water, molecule urea which is nitrogen waste from amino acids and salt.
- The skin would give out water, salt and urea.
- Salt and water is from sweat.
- 3 organs of excretions are lungs, kidney and skin.
Thursday, October 27, 2011
2.67b Human organs of Excretion
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