Ecosystems Crossword
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
                        
 
 
Down: 1) the death of all the organisms of a species2) a contest among populations with the same niche3) damaged ecosystems that are cleaned and restored4) populations living and interacting with each other6) a relationship between different kinds of organisms7) an animal that eats other animals9) a characteristic that helps an organism compete in an ecosystem Across: 5) any waste product that damages an ecosystem7) animals that are eaten8) when acids fall to the earth with rain10) saving of resources11) all the organisms of one kind in an ecosystem12) an area where an organism can find everything it needs to survive13) a gradual change in the kinds of organisms living in an ecosystem
 

 

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