A clear jelly like material that fills the cells is the cytoplasm cyto=cell plasm=goo your welcome 
        
             
        
        
        
Asexual reproduce will result in genetically identical offspring
        
             
        
        
        
Assuming that you're talking about a food pyramid in the ecosystem, 
the best explanation for the decrease in the amount of energy transferred to each succeeding level is that much of energy is :  released as heat
Hope this helps