Elephants

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Across
  1. 3. Different forms of the same gene
  2. 4. Nonliving environmental factors
  3. 7. Role or job of an organism in its environment
  4. 9. All living and nonliving things interacting in an area
  5. 14. Organism that breaks down dead matter
  6. 17. Position in a food chain or energy pyramid
  7. 21. Close relationship between different species
  8. 23. Random change in DNA
  9. 24. Movement of nitrogen through living and nonliving systems
  10. 25. Something that restricts population growth
  11. 26. Struggle between organisms for the same resources
  12. 27. Group of organisms of the same species in an area
  13. 28. density Number of individuals per unit area
  14. 30. Variety of life in an ecosystem
  15. 32. Model showing energy transfer between trophic levels
Down
  1. 1. Division of resources to reduce competition
  2. 2. Environmental factor that influences survival
  3. 5. Trait where elephants lack tusks
  4. 6. Having two different alleles
  5. 8. Species that has a disproportionately large impact on its ecosystem
  6. 10. Insects that break down wood and help recycle nutrients
  7. 11. capacity Maximum population an environment can support
  8. 12. Organism that makes its own food (usually via photosynthesis)
  9. 13. Organism that eats other organisms
  10. 15. Trait that improves survival and reproduction
  11. 16. Having two identical alleles
  12. 18. Living components of an ecosystem
  13. 19. Illegal hunting or killing of animals
  14. 20. Technique used to separate DNA by size
  15. 22. Network of interconnected food chains
  16. 29. Single pathway of energy flow
  17. 31. Segment of DNA that codes for a trait