Which environment are you talking about? is there any answer choices
        
                    
             
        
        
        
Answer:
Enzymes help cells digest food, extract energy from food, and Increases the rate of chemical reactions.
Explanation:
They increase the rate of chemical reactions. Enzymes can be used to break things down, or to make things up.  
Without enzymes, reactions in a cell would slow to a halt, to a point where the cell would die.
 
        
             
        
        
        
Answer:
The answer would be...
Explanation:
It reverses the order of bases in a DNA strand.
Hope this helps. Sry if I get it wrong!
 
        
                    
             
        
        
        
Bacteria and archaea are the domains that only include prokaryotes :)
        
             
        
        
        
True if you are talking about an isotonic solution