Fact 1: Thirst is used to make an animal realize that it needs to replenish its bodily water by the body.

Fact 2: Dehydration causes increased thirst and water consumption.

Given the two facts above, answer the question "What is it called when an animal needs to replenish bodily water?" with the following options: 
- hunger
 - spring
 - diet
 - dehydration
 - hyperthyroidism
 - Pituitary gland
 - fear
 - Exfoliation


 

    dehydration     