Answer:
18.19 mil
Explanation:
In 2020, the United States consumed an average of about 18.19 million barrels of petroleum per day, or a total of about 6.66 billion barrels of petroleum.
 
        
             
        
        
        
Sexual reproduction would create the most diversity among a population
        
                    
             
        
        
        
Answer: p2 + 2pq + q2 = 1
p2 = homozygous dominant gene
2pq = heterozygous gene
q2 = homozygous recessive gene
 
        
             
        
        
        
Answer:
I believe it is A, but I could be wrong. 
Explanation:
I think this, because when it says, "Other, less useful, versions of the genetic code were eliminated gradually throughout the course of evolution", I think it referencing to the fact that all animals and etc, are made up of common codes, and how over time, through evolution, certain codes were eliminated, because creatures were evolving.