An ecosystem<span> is </span>balanced<span> when the natural animals and plants and non-living components are in harmony- i.e. there is nothing to disturb the </span>balance<span>. With increasing pollution, change in migratory patterns, and rise of human population, many </span>ecosystems<span> are in danger of losing that harmony.</span>
        
                    
             
        
        
        
A metal and non-metal form into a compound. that compound is an ionic compound.
 
        
             
        
        
        
Answer:
cells 
Explanation:
cells are the smallest unit that can carry life