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Across 6. An organism that recycles dead plant and animal matter 9. the animal that eats the prey 11. what Ayden and his sister fight for after school 12. the largest population size that an ecosystem can sustain 14. the range of an organism that an organism can exist in 16. it can be hot or cold, an abiotic factor 18. one organism lives on or in another 20. any resource that limits the size of a population 21. its wet, an abiotic factor 22. all the individuals of a certain species living in a certain area 23. how salty water is, an abiotic factor in aquatic ecosystems 24. Any substance that a living thing needs to sustain its life 26. a relationship where one organism benefits, the other is neutral

Down 1. gets eaten (deer, rabbit) 2. the process that plants use to create sugars and oxygen 3. we like to eat this after school 4. a non living factor in an ecosystem 5. the process that animals use to create CO2 and water 7. when one animal eats another 8. a living factor in an ecosystem 10. a parasite that lives in cats and dogs 13. two organisms trying to get the same thing 15. the pattern of continual use and reuse of a nutrient 17. how acidic water is, an abiotic factor in aquatic ecosystems 19. plants and bacteria have this relationship 25. 20 of these can turn into 5120!