You are presented with the question "What is one reason birds have covered bodies?" and the following answer choices: 
- To help them burrow
 - They have thick fur
 - layers of fat
 - To help them fly
 - To keep their body heat.
 - To attract predators
 - with their fur
 - To make them heavier

Now knowing that feathers help birds fly and provide insulation and birds have bodies covered with feathers, choose the best answer.


 

    To help them fly     