A. The black moths were more fit for survival, so their phenotype frequency increased. 
I just did a project over this in biology and kinda hated it lol but there's the answer, have a gr8 day m8
        
                    
             
        
        
        
It is B because cells are basic and they grow everything that you see around you
        
             
        
        
        
The ratio of Carbon, Hydrogen, and Oxygen are 1:2:1 in carbohydrates
        
                    
             
        
        
        
The correct answer is option C, that is, both vitamin C and zinc are involved in immune system functions.  
Vitamin C is an important vitamin, which does an essential function in wound healing, immunity, and eye health. On the other hand, zinc refers to a dietary mineral, which also helps in immunity, protects the eyes from vision-robbing ailments, and also helps to heal wounds.