No animals don't need light
        
                    
             
        
        
        
Answer:
ATP, Carbon dioxide, and water!
Hope this helps!! :)
 
        
                    
             
        
        
        
It controls all the involuntary actions like digestion and beating of our heart
        
             
        
        
        
If an animal became extinct such as a rabbit (even tho they abut extinct) then any animal who only ate rabbits would probably become extinct too an that would keep on happening until no more animals in the world unless they adapted to eating other animals