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· Lungs o Get rid of CO2. o Lose water vapor (Incidental loss: because it is unavoidable and is not a method of controlling the water content of the body.) · Kidneys o Remove urea and other nitrogenous waste from the blood o Expel excess water, salts, hormones and drugs. · Liver o Excretes bilirubin with the bile to the small intestine to later be expelled with the feces. · Skin o Expels water, sodium chloride and urea during sweating. (Incidental loss: because sweating is a response to a rise in temperature and not to a change in blood compostion.)

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17y ago

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