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DSST Environmental Sciences Vocab

Subjects : dsst, science
  • Answer 50 questions in 15 minutes.
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  • 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