You are presented with the question "What occurs in animals as they respond to changes in their habitat?" and the following answer choices: 
- starvation
 - evolution
 - arousal
 - relocation
 - resistance
 - dependency
 - Leptospirosis
 - Movement

Now knowing that evolution occurs in response to a change in the environment and animals react instinctively to changes in their environment, choose the best answer.


 

  evolution       