You are presented with the question "Male dogs use urine to mark their territory the same way as they find what" and the following answer choices: 
- H 2 O
 - humans
 - food
 - shelter
 - a path
 - abcess
 - mates
 - water

Now knowing that male dogs use pheromones in urine to mark their territory and all animals emit pheromones to mate, choose the best answer.


 

       mates  