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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. An organism that breaks down wastes and dead organisms






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






3. The amount of food production in a given area






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






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






6. An interaction in which one organism kills and eats another






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






8. The rate of which a plant grows at






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






10. Measure of quantity of food produced on a given area of land with limited inputs of energy and resources






11. A graph that uses line segments to show changes that occur over time






12. Water stored in underground layers of soil and rock






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






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






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






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






17. Illegal killing or removal of wildlife from their habitats






18. Liphids - proteins - and carbohydrates






19. The introduction of pesticides and high-yield grains and better management during the 1960s and 1970s which greatly increased agricultural productivity






20. A group of land ecosystems with similar climates and organisms






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






22. A consumer that eats only animals






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






24. Rice - corn - potatos - wheat - soy beans






25. The variable that you manipulate






26. Possible to use again






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






28. An environmental factor that causes a population to decrease






29. People who survive by searching for wild plants and animals; always move in small groups






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






31. A relationship in which both species benefit






32. A natural resource that is not replaced in a useful time frame






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






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






35. The first species to populate the area






36. Moving into a population






37. Beginning of urban cities - switch from man power to fossil fuels - machinery and factories are prevalent






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






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






40. A living part of an organism's habitat






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






42. Anything in the environment that is used by people






43. Mistake in following procedure






44. A close relationship between two species that benefits at least one of them






45. Countries with strong economies and a high quality of life






46. Countries with less productive economies and a lower quality of life






47. The organism that the parasite lives in or on






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






49. A material that cannot be recycled or reused






50. The continuous process by which water moves from Earth's surface to the atmosphere and back