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Across 2. Predictiable ordering of a dominance of a species or groups of a species 3. place occupied by a species in its ecosystem and its role 6. amount of use a recreation area can sustain without loss of quality 7. place where a population lives and its surroundings 9. occurring in an environment in which new substrate devoid of vegetation and usually lacking soil 11. interacting system of a biological community and its non living environmental surroundings 12. Interspecific relationship in which both organisms benefit 13. assemblage of a population of different species within a specified location 14. grouping of interbreeding organisms occupying a particular space

Down 1. style of life in which food is obtained by killing and eating of animals 2. process started by an event that reduces an already established ecosystem occurring on preexisting soil 4. living at the expense of or off the body of another organism 5. Portion of earth and its atmosphere that can support life 8. the change of a biological object triggered by the change of a related object 10. relationship of living things to one another and its enviroment