You are presented with the question "What purpose do some animals have for scent?" and the following answer choices: 
- important habitats
 - exoskeleton
 - sensory neurons
 - reproduction
 - nervous system
 - Something to move
 - critical organs
 - unidirectional

Now knowing that an animal needs to attract a mate to reproduce and some animals attract mates with scent, choose the best answer.


 

    reproduction     