Fact 1: An animal usually requires a warm body temperature for survival.

Fact 2: Dormancy is an adaptation that improves the chances of surviving until warm temperatures return.

Given the two facts above, answer the question "Animals use what to improve chances of surviving?" with the following options: 
- Glucose
 - Energy.
 - traits
 - energy
 - food
 - dormancy
 - gene flow
 - four limbs


 

      dormancy   