Tam's Bio
Thursday, October 27, 2011
2.67b Human organs of Excretion
Recall that the lungs, kidneys and skin are organs of excretion
1.
Lungs
excrete carbon dioxide
2.
Kidneys
excrete excess water + urea (nitrogen wastes from amino acides) + salts
3.
Skin
excrete water + salts (sweat)
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