I believe it is Mechanical Energy
        
                    
             
        
        
        
Answer:
Convergent Evolution.
Explanation:
When two different species that are very distantly related but have similar traits its Convergent Evolution due to environmental pressures. 
 
        
             
        
        
        
Average temperature and average precipitation
 
        
                    
             
        
        
        
They waste in the large intestine pass through the villi, where bacteria and other organisms help to digest nutrients and most oftenly absorb the water content ingested. 
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