Answers

2016-01-03T23:12:41+05:30
Skin- sweat
lungs- co2
kidney= urine
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2016-01-04T10:52:19+05:30
kidney -  aqueous substances like blood , lypmh , drugs  , etc. are purified here and thrown in the form of urine with the help of urinary bladder , urethra , ureters etc. in form of urine which consist of water , wastes , salts and uric acid . 

intestine - food wastes are removed from our body .

liver - removal of urea , cholesterol , etc. 

skin - removes , sweat and oil from our body .

lungs- removes carbon dioxide  .
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