Xerostomia (hypo functioning of salivary glands )
        
             
        
        
        
<span>4 molecules of oxygen. Haemoglobin is a protein found in the red blood cells, which carries oxygen to the cells to perform cellular respiration. Each red blood cell carries around 250 million haemoglobin. So the entire capacity of an RBC is around 1 billion oxygen molecules.</span>
        
             
        
        
        
Answer:
thats cause jesus christ is my 
Explanation:
 
        
             
        
        
        
<span>This is invalidate, because the amount of energy should stay constant.</span>
        
                    
             
        
        
        
Answer:
I think it might be the last response, since it takes about what some say, 550 million years...
It might be wrong... But take it into consideration that it might be the right answer.