You are presented with the question "Which type of hair is most important in cold conditions?" and the following answer choices: 
- layers of fat
 - facial hair
 - toe hair
 - fur seals
 - Head hair
 - staying warm
 - arm hair
 - rabbit

Now knowing that head hair is especially important in preventing heat loss from the body and almost half the body heat lost in cold conditions escapes from the head, choose the best answer.


 

     Head hair    