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:
the genetic code is universal. 
Explanation:
 
        
             
        
        
        
Answer:
light energy
Explanation:
Plants take in sunlight given off by the sun to make food during photosynthesis