ESS Topic 2 - revision (part 1)

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Across
  1. 2. A population growth curve showing exponential growth with no limit.
  2. 5. A group of individuals of the same species living in a specific area.
  3. 6. An organism that feeds on dead organic matter (e.g. earthworms).
  4. 8. A group of organisms that can interbreed and produce fertile offspring.
  5. 10. A diagram showing the mass of living material at each trophic level.
  6. 14. A factor whose effect increases with population density (e.g. disease).
  7. 16. A microorganism that causes disease.
  8. 17. Energy lost from a system, often as a result of energy transfers.
  9. 18. An organism that makes its own food using photosynthesis (e.g. plants).
  10. 19. The phase in population growth where numbers stabilize.
  11. 20. An organism that hunts and eats other animals.
  12. 23. All populations of different species living and interacting in an area.
  13. 25. An organism that lives on or in a host and harms it.
  14. 26. Energy cannot be created or destroyed, only transformed.
  15. 28. An organism that is hunted and eaten by a predator.
  16. 30. A linear sequence showing energy flow from one organism to another.
  17. 33. An organism (often bacteria or fungi) that breaks down dead organic material.
  18. 36. An organism that eats producers (usually herbivores).
  19. 38. Non-living physical or chemical factors in an environment.
  20. 41. A logistic growth curve that levels off at carrying capacity.
  21. 42. An animal that feeds only on plants.
  22. 43. Interaction where one organism (predator) hunts and eats another (prey).
  23. 46. Living components of an ecosystem.
  24. 47. An organism that eats primary consumers.
  25. 49. A measure of disorder in a system; tends to increase over time.
  26. 50. A factor that affects a population regardless of its density (e.g. natural disasters).
  27. 51. Rapid population growth without environmental limits.
  28. 53. A community of organisms and their abiotic environment interacting as a system.
  29. 54. A scavenger bird that feeds on dead animals.
Down
  1. 1. An organism that eats tertiary consumers (top of the food chain).
  2. 3. The rate at which energy is produced or biomass is generated.
  3. 4. A relationship where one organism benefits at the expense of another.
  4. 7. Competition between individuals of different species.
  5. 9. or energy: A diagram showing energy flow and loss at each trophic level.
  6. 11. A position in a food chain based on feeding relationships.
  7. 12. A relationship where both species benefit.
  8. 13. A complex network of interconnected food chains.
  9. 15. Competition between individuals of the same species.
  10. 21. A condition that disrupts normal body functions, often caused by pathogens.
  11. 22. A factor that restricts the growth of a population.
  12. 24. An animal that consumes dead organisms it did not kill.
  13. 27. Energy transformations lead to increased disorder (entropy).
  14. 29. The maximum population size an environment can sustainably support.
  15. 31. A diagram showing the number of organisms at each trophic level.
  16. 32. Only about 10% of energy is passed on to the next trophic level.
  17. 34. An animal that eats both plants and animals.
  18. 35. An organism that eats secondary consumers.
  19. 37. A symbiotic association between a fungus and an alga or cyanobacterium.
  20. 39. An organism that feeds on dead or decaying organic matter by external digestion.
  21. 40. The process by which plants convert sunlight, water, and COâ‚‚ into glucose and oxygen.
  22. 44. The natural environment where a species lives.
  23. 45. The process by which organisms break down glucose to release energy.
  24. 48. Interaction where organisms compete for limited resources.
  25. 52. An organism that supports a parasite.