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DSST Environmental Science - 2

Subjects : dsst, science
Instructions:
  • Answer 50 questions in 15 minutes.
  • If you are not ready to take this test, you can study here.
  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. A relationship between two species in which one species benefits and the other is neither helped nor harmed






2. Species that are carried to a new location by people






3. All the members of one species in a particular area






4. Refers to an increase in Earth's average surface temperature






5. A relationship in which one organism lives on or in a host and harms it






6. A behavior or physical characteristic that allows an organism to live successfully in its environment






7. The practice of protecting the environment






8. Fires that are set by humans






9. A form of decision-making concerned with the allocation and conservation of natural resources






10. Increase the stability of an ecosystem






11. A region that has many different types of organism is described as having a high level of this






12. This draws people from urban areas to rural areas






13. Has the highest amount of species diversity






14. Cooking oil - fuel - and medicines






15. The role of an organism in its habitat - or how it makes its living






16. The amount of replacement is equal to the amount harvested






17. Plan to establish an 8000 kilometer long strip of land to rejoin fragments of tiger habitat






18. Land that is sparsely populated and has few buildings or roads






19. The amount of carbon dioxide emissions for which an individual or group is responsible






20. A virus or bacterium (organisms) that cause infectious diseases






21. A series of events in which one organism eats another and obtains energy






22. A natural pattern in which species diversity generally increases toward the equator






23. A species that is at risk of extinction






24. The probability that a hazard will cause a harmful response






25. Building up not out






26. An example of a method for managing whole ecosystems and habitats






27. Moving into a population






28. A large area heavily populated like Miami - Florida or Toledo - Ohio






29. One way zoos and aquariums help increase wildlife populations






30. An area with a large population of valuable ocean organisms






31. Chemicals that causes harm to embryos and fetuses






32. The series of changes that occur in an area where no soil or organisms exist






33. An organism that can make its own food






34. An amount of a renewable resource that can be harvested regularly without reducing the future supply






35. Taking in carbon dioxide from the atmosphere during photosynthesis






36. Water vapor and carbon dioxide that trap heat near the earth






37. A nonliving part of an organism's habitat






38. Any substance that poses a chemical hazard






39. The organism that does the killing in a predation interaction






40. The disappearance of a particular population from a given area - but not from the entire species globally






41. Pollution from a factory near your school






42. A close relationship between two species that benefits at least one of the species






43. The number of different species in an area






44. A resource that is either always available or is naturally replaced in a relatively short time






45. Using public transportation






46. An organism that is killed and eaten by another organism






47. Sex - weight - and health issues






48. A species that could become endangered in the near future






49. Shift of population from countryside to cities






50. Watering crops

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