<span>Nonpolar fatty acid chains</span>
        
                    
             
        
        
        
The answer to this question would be Fermentation. This is a process that releases energy when oxygen is insufficient. 
 
        
             
        
        
        
Answer:
The answer is A.  metabolism.
Explanation:
Metabolism is the breakdown of food and its transformation into energy.
 
        
             
        
        
        
Answer:
The answer is D) Facultative anaerobe 
Hope this helps!