If there is no oxygen , the cells go through anaerobic respiration which leads tot he build of lactic acid in the muscles. This is why we get sore and feel the burn during a workout. 
        
             
        
        
        
I can find the answer it’s prob under the table
        
             
        
        
        
Answer:
DNA is the 33 chromosomes. RNA is the protein that exists in viruses... that's All what I know.
 
        
                    
             
        
        
        
<span>Secondary succession in healthy ecosystems following natural disturbances often reproduces the original climax community. Ecosystems may or may not recover from extensive human-caused disturbances.</span>
        
                    
             
        
        
        
it involved in the transfer of genetic material from one cell to another.