Answer:
Two identical daughter cells.
Explanation:
Mitosis is when a single celled organism divides itself into two identical cells, called daughter cells. The opposite of this is meiosis. 
 
        
                    
             
        
        
        
Answer:
A
Explanation:
Viruses don't contain organelles.
 
        
             
        
        
        
Easy. Answer is oxygen because it says which one was missing before any life was on earth. And in order to have life on earth you need oxygen! 
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<span>The change in the position of any object in a given time is known as motion.</span>
        
             
        
        
        
Intake and eject 
I hope it is correct