If the amount of available food and water decreases in an environment then animals may leave that environment to find food and water, and bears are common but elusive animals. Given these facts, what will bears do if the amount of available food and water decreases among the following options:
- exposure to cold
 - they develop spacecrafts
 - they stay where they are
 - depress neuronal excitability
 - they leave the environment
 - they move to Vegas
 - structure and function
 - mate with females


 

     they leave the environment    