Statistical data relating to the population and particular groups within it.
        
                    
             
        
        
        
Breathing rate is controlled by breathing in co2 into your lungs and breathing out co2 hope this helps
        
                    
             
        
        
        
Think of DNA as a code and think of your brain as a computer. Computers must have code to tell them what to do! Without DNA, we wouldn’t be able to function! People who are missing some “code” aka a strand of DNA may have some disabilities such as blindness. This is because their brain doesn’t known what to do with their eyes because they don’t have “code” to tell them what to do! 
Hope that this helped.