In predation, one population is the resource of the other. One can conceptualize competition as occurring horizonatally on the same resource level, while predation takes place vertically between different resource levels. Competition and predation comprise environmental pressures on the interacting populations.
 
        
             
        
        
        
Answer:
ATP
Explanation:
atp is the main source of energy for many cellular processes including muscle contraction and cell division.
 
        
             
        
        
        
Answer:
a region on an enzyme that binds to a protein or other substance during a reaction.
 
        
             
        
        
        
During the transfer of energy from one tropic level to the next tropic level around 90% of the total energy is lost in the metabolic processes in the form of heat. Hence only about 10% of the total energy can only be transferred from one tropic level to the next tropic level.