You are presented with the question "Avian species are less likely to end up extinct if they what?" and the following answer choices: 
- single-celled organisms
 - important habitats
 - abandon habitats
 - stop reproducing
 - animals with backbones
 - produce offspring
 - population movement
 - destroy offspring

Now knowing that if all members of a species cannot produce offspring then that species will likely become extinct and avian species are less likely to become extinct if they are common across large ranges, choose the best answer.


 

      produce offspring   