You are presented with the question "Urine is a product of what organ of the body that is excreted by the urinary system?" and the following answer choices: 
- bowel
 - epidermal
 - bladder
 - alveoli
 - lungs
 - urine
 - mammals
 - NaCl

Now knowing that urine is the liquid waste product of the body that is excreted by the urinary system and liquid waste is put into the bladder, choose the best answer.


 

   bladder      