Answer:
Based on the cladogram, which two species share the most recent common ancestor?
lizard and owl
Explanation:
 
        
             
        
        
        
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. 
        
             
        
        
        
The theory is the Continental drift, the super-continent is called the Pangaea.