Topography is the rise and fall of the land (AKA B)
        
                    
             
        
        
        
When the ATP converts to ADP, the ATP is said to be spent. he molecule is used like a battery within cells and allows the consumption of one of its phosphorous molecules.The energy currency used by all cells from bacteria to man is adenosine triphosphate (ATP).
 
        
             
        
        
        
Neutron stars are created when
giant stars die in supernovas and
their cores collapse, with the
protons and electrons essentially
melting into each other to form
neutrons. Credit: NASA/Dana
Berry
        
                    
             
        
        
        
B. community
hope this helps;)
        
             
        
        
        
Answer:
The enzyme 's active site binds to the substrate. ... When an enzyme binds its substrate it forms an enzyme-substrate complex. Enzymes promote chemical reactions by bringing substrates together in an optimal orientation, thus creating an ideal chemical environment for the reaction to occur
Explanation: