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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 organism that the parasite lives in or on






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






4. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






5. Flaw in design of procedure






6. A species in danger of becoming extinct in the near future






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






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






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






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






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






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






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






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






15. The amount of food production in a given area






16. A consumer that eats only plants






17. An organism's particular role - or how it makes its living






18. Anything in the environment that is used by people






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






20. A higer demand of that limited product the the price goes up






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






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






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






24. The first species to populate the area






25. The number of different species in a given area






26. A resource that is able to be reused - or can be replenished quickly






27. A severe shortage of food (as through crop failure) resulting in violent hunger and starvation and death






28. A carnivore that feeds on the bodies of dead organisms






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






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






31. A chart with bars






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






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






34. Possible to use again






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






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






37. A graph that highlights segments of a circle to show simple distribution patterns






38. A consumer that eats only animals






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






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






41. Heat from the Earth's interior






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






43. Mistake in following procedure






44. The practice of reducing energy use






45. The issue where humans don't take care of the Earth.






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






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






48. Evaluation of the short-term and long-term risks associated with a particular activity or hazard






49. Mass destruction of most species






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