Hello
D. Animal is is the answer.
Hope this helps u!
Let me know if it's correct.
        
             
        
        
        
.............Help on what?
 
        
                    
             
        
        
        
Ecosystems disturbed by a nature will be eventually restored unless it's a really big cataclysm, but most of the ecosystems are now a human caused disturbance. For example there are plenty of species which are already extinct or nearly extinct because of hunting industry.
        
             
        
        
        
Answer:
What is the problem... nothing is listed??
Explanation:
 
        
                    
             
        
        
        
Snake goes to frog frog goes to bug bug goes to leaf and leaf goes to soil