Environmental Science Review

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051
Across
  1. 1. A collection of several species living in the same place at the same time.
  2. 10. Describes a species found only in one area in the world.
  3. 11. Organisms that break down dead organisms into their basic components.
  4. 15. _____ species are species that enter an ecosystem from somewhere else.
  5. 16. _____ species are species that have large consequences when removed from an ecosystem.
  6. 17. _____ species are species at risk of extinction.
  7. 19. Genetic _____ is a change in distribution of a certain trait caused by random chance.
  8. 20. Resource _____ is the dividing up of resources between different species in an ecosystem.
  9. 21. _____ potential is the maximum ability of a species to reproduce.
  10. 22. The diversity of life in an area.
  11. 26. Process by which chemicals are turned into sugars (ecosystems without light)
  12. 28. The collection of all life on Earth and all the things they interact with.
  13. 30. A relationship in which one organism consumes another.
  14. 31. _____ factors control how many organisms an area can support.
  15. 32. The process by which plant and animal life returns to an area after a catastrophe.
  16. 33. The elimination of all members of a species from a specific area on Earth.
  17. 34. A relationship in which one species feeds off of another without killing it.
  18. 37. The maximum number of organisms an ecosystem can support.
  19. 43. Organism that only eats plants.
  20. 45. A sequence of DNA that controls a specific trait.
  21. 46. Any relationship in which two organisms affect one another.
  22. 47. Organism that only eats animals.
  23. 48. Evolution in response to changes in another organism.
  24. 49. Communities and the nonliving elements they interact with.
  25. 51. The measure of how successfully organisms reproduce in a given environment.
Down
  1. 2. The seasonal cycle of entering and exiting a population.
  2. 3. _____ species are species at risk of becoming endangered.
  3. 4. Organisms capable of making their own food.
  4. 5. Illegal hunting of an animal.
  5. 6. _____ breeding involves re-growing a population and then releasing them into the wild.
  6. 7. The elimination of all members of a particular species from the entire Earth.
  7. 8. Changing behavior in order to survive.
  8. 9. The total number of offspring a female has during her life.
  9. 12. A relationship in which two species benefit one another.
  10. 13. Population _____ refers to the amount of individuals in a certain area.
  11. 14. The area in which living things find all resources they need in order to survive.
  12. 18. Population _____ refers to the way individuals are spread out in an area.
  13. 23. The study of organisms and their interactions with their environments.
  14. 24. The process by which more favorable traits become more common in a population.
  15. 25. The study of characteristics of human populations.
  16. 27. When individuals leave a population.
  17. 29. The process of one species splitting into two or more species.
  18. 35. The role an organism plays in its ecosystem.
  19. 36. Habitat _____ is the separation of a habitat into several distinct “islands”
  20. 38. When individuals move into a population.
  21. 39. A relationship in which one species benefits and the other is unaffected.
  22. 40. Process by which plants make their own food.
  23. 41. Organism that eats dead and decaying matter.
  24. 42. Individuals of the same species living in the same place at the same time.
  25. 43. A biodiversity ______ is an area with very high levels of biodiversity.
  26. 44. Similar ecosystems spread over large areas of Earth.
  27. 50. A group of organisms that can interbreed, producing fertile offspring.