Science Exam Crossword
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
                    
 
 
Down: 1) Transformation of land into desert.2) nonliving factors such as sunlight, water, wind, chemicals, nutrients and temperature. Across: 3) Ecosystems change over time due to natural factors or 4) The effects on an ecosystem that are a result of the living things in an ecosystem. 5) A predator controls the size and growth of a population this is an example of6) Similar body parts in different organisms that serve different needs
 

 

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