If excessive physical and emotional exertion decreases an animal's bodily water, then excessive physical and emotional exertion does what to an animal?

Answer choices:
- cause their death
 - decreases its bodily water
 - encourages mating
 - major threat to health
 - heat the body
 - depress neuronal excitability
 - rehydrates the body
 - yields more offspring

 

  decreases its bodily water        