You are presented with the question "what do organisms use thirst for?" and the following answer choices: 
- solutes
 - life
 - water
 - energy
 - air
 - blood
 - shelter
 - food

Now knowing that thirst is used to make an animal realize that it needs to replenish its bodily water by the body and animals experience hunger, thirst, fear, sickness, injury and strong maternal instincts, choose the best answer.


 

   water      