You are presented with the question "Mammals have a layer of fat under the skin to help keep the body warm in what?" and the following answer choices: 
- cozy cabins
 - by keeping them warm
 - warm areas
 - a variety of climates
 - In the winter
 - heat or cold
 - the environment
 - sunny places

Now knowing that mammals have a layer of fat under the skin to help insulate the body and hair is used to insulate and keep the body warm in a large variety of climates, choose the best answer.


 

    a variety of climates     