GCSE Biology - Ecology

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Across
  1. 2. A series of organisms each dependent on the next as a source of food. 'Food ...'
  2. 5. A group of individuals of the same species living in a particular area.
  3. 6. Tiny solid pieces of carbon can contribute to air pollution and lead to respiratory issues.
  4. 10. An organism that breaks down dead material for energy.
  5. 11. The equipment used to measure abundance
  6. 15. The element that, in compound form, contributes to acid rain.
  7. 16. Non-living components of an ecosystem.
  8. 21. An organism that eats other organisms for energy.
  9. 22. A measure of how spread out a species is, in a specific area.
  10. 24. The variety of life in the world or in a particular habitat.
  11. 25. The technique used to measure distribution 'Line ...'.
  12. 28. The process that both animals and plant do, which returns CO2 to the atmosphere.
  13. 30. The process plants undertake, increases atmospheric water levels.
Down
  1. 1. A measure of how many individuals can be found in a specific area.
  2. 3. A trait that helps an organism survive and reproduce.
  3. 4. Living components of an ecosystem.
  4. 7. Margins placed around fields in an effort to increase biodiversity.
  5. 8. A complex network of interconnected food chains 'Food ...'.
  6. 9. The natural home or environment of an organism.
  7. 12. The process in which plants decrease the levels of atmospheric CO2.
  8. 13. The removal of woodlands and forests
  9. 14. The total mass of organisms in a given area or volume.
  10. 15. Increasing birth rates, changing diets, flooding and droughts are all reasons we are concerned about our food...
  11. 17. Different populations living together in a particular area.
  12. 18. An organism that makes its own food, usually through photosynthesis.
  13. 19. A community of living organisms and their physical environment.
  14. 20. The position an organism occupies in a food chain, known as a '... level'.
  15. 23. An animal that is hunted and eaten by predators.
  16. 26. The struggle between organisms for the same resources.
  17. 27. An animal that hunts other animals for food.
  18. 29. A substance found in the ground of many bogs, it is rich in carbon and nutrients