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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. Illegal killing or removal of wildlife from their habitats






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






3. The practice of reducing energy use






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






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






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






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






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






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






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






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






12. Moving into a population






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






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






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






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






17. A living part of an organism's habitat






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






19. The amount of food production in a given area






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






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






22. Leaving a population






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






24. The series of predictable changes that occur in a community over time






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






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






27. A measure of human demand on the Earth's ecosystems






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






29. In an experiment - the group of participants that recieves the manipulation






30. The act of restricting your food intake (or your intake of particular foods)






31. Something that breaks down into soil






32. Resources supplied by nature






33. A nonliving part of an organism's habitat






34. Liphids - proteins - and carbohydrates






35. An organism that breaks down wastes and dead organisms






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






37. The study of how living and nonliving things interact






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






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






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






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






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






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






44. A habitat in which the freshwater of a river meets the salt water of an ocean






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






46. Wheat -bairley -corn....carbohydrates






47. A consumer that eats both plants and animals






48. The organism that the parasite lives in or on






49. Mass destruction of most species






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







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Can you answer 50 questions in 15 minutes?


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