The answer to the question is A
 
        
                    
             
        
        
        
Answer:
I believe this is the Biceps femoris
Explanation:
 
        
             
        
        
        
One of the major elements of natural selection is that all species have genetic variation. Natural selection is a process when organisms adapt better to their environment. It is an essential key in evolution. There is a change in phenotype of a population over time.