You are presented with the question "How do salamanders usually find sexual partners?" and the following answer choices: 
- mouth of rivers
 - It helps them survive
 - interact
 - it needs them
 - competition
 - movement
 - sense of smell
 - heat produced

Now knowing that most salamanders use their sense of smell to find a mate and to couple in sexual union, to be matched or mated, choose the best answer.


 

       sense of smell  