As energy moves through trophic levels in an ecosystem the amount that is available decreases. ... A: Energy flows in a food web by being transferred to and between organisms as they undergo photosynthesis, are consumed by another organism, or decompose.
 
        
             
        
        
        
The object is balanced against standard units of mass
 
        
             
        
        
        
I believe the answer is fish vertebrates. i hope this helped