You are presented with the question "what changes to cause evolution to occur?" and the following answer choices: 
- Quality of life
 - flow of electrons
 - Plants growth
 - Plant reproduction
 - density
 - h2o
 - earth's rotation
 - native habitats

Now knowing that evolution occurs in response to a change in the environment and environments reflect native habitats, choose the best answer.


 

        native habitats 