Answer:
because they were interanls
Explanation:
 
        
             
        
        
        
Girl what the hell are u on
        
                    
             
        
        
        
Feral hogs is the right answer
        
             
        
        
        
The nitrogen cycle could no exist without bactria. bacteria that lived inside the ground, catch the nitrogen that has been fixed and covert it into nitrate. 
        
             
        
        
        
Winds up the replicated DNA Strand