You are presented with the question "Behaviors that improve fitness increase through" and the following answer choices: 
- differential reproduction
 - produce offspring
 - biological diversity
 - metabolic reaction
 - recovery time from fatigue
 - characteristics
 - barks and snarls
 - members of their own species

Now knowing that behaviors that improve fitness increase through natural selection and natural selection is differential reproduction, choose the best answer.


 

 differential reproduction        