PSSA Science Review 1 Crossword
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
                     
 
 
Down: 1) The changing of organic matter that has been produced by photosynthesis into useful liquid, gas or fuel.2) A nonliving factor or element (e.g., light, water, heat, rock, energy, mineral) 3) Any of a set of possible forms of a gene Across: 4) The variety and complexity of species present and interacting in an ecosystem and the relative abundance of each.5) The changing of organic matter into other chemical forms.6) A community of living organisms of a single major ecological region.
 

 

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