Answer:G. thurberi
Explanation: because you can really tell. Correct 
 
        
             
        
        
        
Answer:
I would think Channel proteins but I could be wrong
 
        
             
        
        
        
The answer would be -- A. Cenozoic
        
                    
             
        
        
        
A food chain can usually sustain no more than six energy transfers before all the energy is used up. And so less energy is transferred at each level of the food chain so the biomass gets smaller.