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Across 1. Leaving an area 5. All interacting organisms in an area (singular) 7. Period of adjustment 11. Strong competitors in crowded niches, and invest more heavily in fewer offspring, each of which has a relatively high probability of surviving to adulthood (No dash) 12. Birth Rate 15. Organisms reproducing at a high rate, utilizing resources, have adapted to the environment. 17. All living organisms and non-living factors found in a particular place determined by plants, topography, climate, etc. 18. Studying organisms in their environment 19. An organism’s role (function) in an environment 20. A group of living organisms consisting of similar individuals capable of exchanging genes or interbreeding (plural)

Down 2. Entering an area 3. All members of a single species 4. An organism that reproduces extremely fast and can occupy empty niches (No dash) 6. Death Rate 8. Place where an organism lives 9. One member of a particular species (singular) 10. Thin volume of Earth where all life exists and its atmosphere 13. Non-living things in the environment 14. Living or derived from living things 16. Predator-____ Relationships