Because organisms and such can only thrive meaning produce in warm areas.<span />
        
                    
             
        
        
        
Answer:
There are no known organisms because of the lack of sunlight necessary for photosynthesis to produce these organisms
Explanation:
The bathyal zone is less densely populated. Sunlight does not reach this zone, meaning primary production, if any, is almost nonexistent
 
        
             
        
        
        
The lining of the heart is the pericardium.