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DSST Environmental Sciences Vocab

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. The series of changes that occur in an area where the ecosystem has been disturbed - but where soil and organisms exist






2. The theory that increasing carbon dioxide in the atmosphere will raise Earth's average temperature






3. Mistake in following procedure






4. An organism that obtains energy by feeding on other organisms






5. The condition in which human needs are met in such a way that a human population can survive indefinitely






6. Any form of water that falls to the Earth's surface






7. The process by which a gas changes to a liquid






8. Leaving a population






9. The degree of hotness or coldness of a body or environment






10. The trapping of heat near Earth's surface by certain gases (carbon dioxide - water vapor and other gases) in the atmosphere






11. The largest population that an area can support






12. A species that influences the survival of many others in an ecosystem






13. When a large fraction of the resource has been used up






14. The process of changing free nitrogen gas into a usable form






15. Capable of being broken down by bacteria or other decomposers






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






17. Wheat -bairley -corn....carbohydrates






18. The time when human begins first domesticated plants and animals and no longer relied entirely on hunting and gathering.






19. Flaw in design of procedure






20. The group that does not receive the experimental treatment.






21. The practice of reducing energy use






22. A relationship in which one species benefits and the other is neither helped nor harmed






23. The disappearance of all members of a species from Earth






24. Organism that is killed






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






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






27. An environment that provides the things an organism needs to live - grow and reproduce






28. The process in which the changes that make organisms better suited to their environments develop






29. The community of organisms that live in a particular area along with their nonliving surroundings






30. All the different populations that live together in an area






31. Illegal killing or removal of wildlife from their habitats






32. The pattern of overlapping food chains in an ecosystem.






33. A graph that uses dots to compare rate of change over time






34. Behaviors and physical characteristics of species that allow them to live successfully in their environment






35. Water stored in underground layers of soil and rock






36. A consumer that eats only animals






37. The typical weather pattern in an area over a long period of time






38. A grid that displays the data plotted in a chart.






39. A consumer that eats only plants






40. An environmental factor that causes a population to decrease






41. Struggle between organisms to survive in a habitat with limited resources






42. An energy rich substance (such as coal - oil - or natural gas) formed from the remains of organisms






43. Anything in the environment that is used by people






44. An organism that can make it's own food






45. A study that compares the costs and benefits to society of providing a public good






46. An organism that breaks down wastes and dead organisms






47. A resource that is not able to be reused - or cannot be replenished quickly






48. Moving into a population






49. Farmers who raise food and animals mainly to feed their own families






50. The organism that benefits by living on or in a host