Science Exam Crossword
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
                       
 
 
Down: 1) A predator controls the size and growth of a population this is an example of2) Transformation of land into desert.3) The effects on an ecosystem that are a result of the living things in an ecosystem. Across: 4) Ecosystems change over time due to natural factors or 5) nonliving factors such as sunlight, water, wind, chemicals, nutrients and temperature.6) Similar body parts in different organisms that serve different needs
 

 

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