You are presented with the question "What can be maintained when individuals move into or out of a population?" and the following answer choices: 
- loose soil
 - vegetation
 - reusing materials
 - important habitats
 - genetic diversity
 - resistance
 - hydration
 - swamp vegetation

Now knowing that gene flow occurs when individuals move into or out of a population and genetic diversity can be maintained in small populations by even a small amount of gene flow, choose the best answer.


 

     genetic diversity    