You are presented with the question "Why do bears hibernate?" and the following answer choices: 
- use greater resources
 - one celled organisms
 - they are lazy
 - conserve energy
 - When it's cold
 - hard outer covering
 - hydration
 - more sleep

Now knowing that hibernation is used for conserving energy by some animals and bears use the fat as energy over the winter hibernation, choose the best answer.


 

    conserve energy     