You are presented with the question "Organs of waste do what to the waste system?" and the following answer choices: 
- harm them
 - stink up
 - make up
 - recovery
 - recycling
 - eat up
 - poop up
 - store

Now knowing that organs of excretion make up the excretory system and all organisms excrete wastes, choose the best answer.


 

   make up      