Fact 1: Better senses have a positive impact on an animal 's survival.

Fact 2: Living and surviving are the thing.

Given the two facts above, answer the question "What do better senses have an impact on?" with the following options: 
- passing gas
 - population movement
 - blood type
 - important habitats
 - animals with backbones
 - ability to live
 - body odor
 - athletes


 

      ability to live   