Chapter 7 Crossword
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
                                       
 
 
Down: 1) condition that keeps an organism from functioning properly3) plants or animals not native to an ecosystem that harm native organisms4) mature and stable ecosystem5) intetraction in which one organism catches and feeds on an organism of another species6) place of great biodiversity whose species are threatened by human activity11) complete disappearance of a species Across: 2) something that restricts the growth and distribution of a population7) struggle among living things to use the same resources in an ecosystem8) variety of species that live in an ecosystem9) one of the first species to colonize new or newly disturbed land10) establishment of communities in an area where living things never existed before12) development of new communities after an ecosystem has been disturbed
 

 

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