Carbon dioxide hopefully I think ❤️
        
             
        
        
        
<span>When an athlete is nearing the end of a race and her cells are low on oxygen, it is likely to be fermentation. When cells have used up all their oxygen they ferment glucose into lactic acid. Fermentation is a metabolic process that consumes sugar in the absence of oxygen</span>
        
             
        
        
        
The Pentagon is the headquarters of the <span>United States Department of Defense
And is a symbol of the US military </span>
        
                    
             
        
        
        
<span>The surface temperature of white dwarf stars is higher than that of red super giants. White dwarf stars are extremely hot when they form, and they start cooling off as time goes by. Red supergiants, on the other hand, are enormous dying stars, and they are quite cool. So, having this in mind, white dwarves are hotter than red supergiants. Hope I helped! :) Cheers!</span>
        
             
        
        
        
Answer:
Two genes.  
There are two change gatherings:  
Changes 1,2,4, and 7 didn't supplement one another, and thus are on a similar quality.  
Changes 3, 5 and 6 didn't supplement one another, however supplemented with transformations 1, 2, 4, and 7. Thus, these three transformations are available together on an alternate quality.