Fact 1: Hibernation is used for conserving energy by some animals.

Fact 2: Hibernation is a sleep-like state.

Given the two facts above, answer the question "what is used for conserving energy by some animals?" with the following options: 
- hydration
 - food and shelter
 - bears
 - breathing
 - hunting
 - organic molecules
 - dormant state
 - sleep-like state


 

        sleep-like state 