Science Vocabulary Crossword
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
                
 
 
Down: 1) A condition that controls the size or growth of a population.2) A species that has decreased until it is almost endangered. 3) Term used to describe the wide variety of life on Earth.5) Species that no longer exist. Across: 4) The first species established themselves in a lifeless area.6) Species that may become extinct if itd population decreases.
 

 

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