You are presented with the question "How are nitrogenous wastes excreted?" and the following answer choices: 
- solutes
 - wetland
 - salmon
 - urine
 - soil
 - harmful
 - gills
 - CO 2

Now knowing that urine is the liquid waste product of the body that is excreted by the urinary system and nitrogenous wastes leave the body in the urine, choose the best answer.


 

    urine     