The answer is A The amino acid inactivates the repressor
        
             
        
        
        
They produce oxygen they are used as shelter, they are used for blocking the shade, they sustain other animals that sustain the planet and us.
        
             
        
        
        
B. are trying to use the same resources 
 
        
                    
             
        
        
        
Answer:
Light is electromagnetic radiation within a certain portion of the electromagnetic spectrum. The word usually refers to visible light, which is the visible spectrum that is visible to the human eye and is responsible for the sense of sight.
 
        
             
        
        
        
The answers is chromosomes