You are presented with the question "What does a hairy organism have under its skin to help insulate the body?" and the following answer choices: 
- fat
 - hair
 - food
 - cell
 - nerves
 - coat
 - fur
 - marrow

Now knowing that mammals have a layer of fat under the skin to help insulate the body and if it has hair it is a mammal, choose the best answer.


 

 fat        