The process which occurs in the structures that are labeled X is Kreb's cycle. 
It has to do with releasing stored energy in the form of adenosine triphosphate (ATP). This is an extremely important part of metabolism and was first introduced by Hans Adolf Krebs in 1937. 
        
                    
             
        
        
        
<span>The labs were unable to reproduce the pharmaceutical company’s data
An important characteristic of scientific experiments is that their results can be replicated. In this case, assuming that the laboratories followed the same procedure as the pharmaceutical company, the fact that the data could not be replicated means that the company's claims are invalid. The validity of the claims is more questionable given the huge difference in the final conclusions, with the company reporting a 35% decrease, while the maximum decrease observed by the labs was 8%.
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Answer:
crust, outer mantle, inner mantle, and core
Explanation:
Hope this helps
 
        
             
        
        
        
Answer:
 difference in density
Explanation:
 We know that the high central density suggests the earth must be rich in nickel and iron and that much of the core must be liquid. This lower-density air then rises and is replaced by cooler, higher-density air. The result is atmospheric circulation that drives the weather and climate through redistribution of thermal energy. 
 
        
                    
             
        
        
        
Answer:
9 brains
Explanation:
No explanation, but you can fact check this by looking it up :)