Biosphere Day 27 Crossword
               
               
               
               
               
               
               
               
               
               
               
               
               
               
               
 
 
Down: 1) is the property of communities or populations to remain "essentially unchanged" when subject to disturbance.3) powerful indirect interactions that can control entire ecosystems.4) a copy or a representative from a group to undergo the same (exact) procedure.5)  a branch of philosophy that "involves systematizing, defending, and recommending concepts of right and wrong behavior" Across: 2) animals kept or raised for use of profit6) any type of a close and long-term biological interaction between two biological organisms of different species. 7) an introduced species to an environment that becomes overpopulated and harms its new environment.8) a series of living things in which each uses the one below it as a food source.
 

 

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