I belive the three main subgroups are domain eukarya, domain archaea and domain bacteria
        
             
        
        
        
Answer:
D plants get their nitrogen from soil bacteria
Explanation:
I hope its right :)
 
        
                    
             
        
        
        
C
A community is a group of animals that coexist in the same environment
        
             
        
        
        
It could trigger nuclear fussion