Food Webs and Symbiotic Relationships Crossword
              
              
              
              
              
              
              
              
              
              
              
 
 
Down: 1) organisms that break down organic matter.3) substances that provide nourishment.4) a diagram that shows interconnections of all species in an ecosystem. Across: 2) the sequence in which matter and energy are transferred in an ecosystem.5) a relationship between two different species that have a close physical interaction with one another.6) the position an organism occupies in a food chain.
 

 

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