You are presented with the question "What do most animals need to be sure they survive on the Earth?" and the following answer choices: 
- smell and taste
 - biodiversity
 - a building to live in
 - regulated body heat
 - a mate
 - sense organs
 - food and shelter
 - a car

Now knowing that an animal usually requires a warm body temperature for survival and temperature Temperature is an measurement of the amount of heat, choose the best answer.


 

    regulated body heat     