Answer: independent variable
Explanation:
 
        
             
        
        
        
Answer:
The ecosystem would be forced to radically change, allowing new and possibly invasive species to populate the habitat.
Explanation:
A keystone species is an organism that helps define an entire ecosystem. Without its keystone species, the ecosystem would be dramatically different or cease to exist altogether. 
I HoPe ThIs HeLpS!!!!!
 
        
             
        
        
        
Energy from ATP causes a transport protein to change shape, binding substances on one <span>side of the membrane, and releasing them on the other.</span>
        
             
        
        
        
Answer:
A is the answer
Explanation:
Carbon dioxide and water are the reactants of both processes
 
        
             
        
        
        
I'm not sure but it might be C