You are presented with the question "Mammals can also generate little bursts of heat by what?" and the following answer choices: 
- the body's largest organ
 - reacting to the cold
 - flow of electrons
 - looking very cold
 - reacting to the news
 - considering being warm
 - Movement of an air mass
 - with their fur

Now knowing that mammals can also generate little bursts of heat by shivering and an inability to shiver or react to the cold can contribute to hypothermia, choose the best answer.


 

  reacting to the cold       