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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. Situation in which people acting individually and in their own interest use up commonly available but limited resources - creating disaster for the entire community






2. The movement or organisms from one place to another






3. Resources supplied by nature






4. Something that breaks down into soil






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






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






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






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






9. A material that cannot be recycled or reused






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






11. Organism that does the killing






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






13. The number of different species in a given area






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






15. Something that does not completely break down into the soil






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






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






18. The process of cutting down only some trees in area






19. Flaw in design of procedure






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






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






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






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






24. The study of the impact of humans on the environment






25. A consumer that eats only animals






26. A nonliving part of an organism's habitat






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






28. The effect of the IV






29. The practice of reducing energy use






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






31. Liphids - proteins - and carbohydrates






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






33. Illegal killing or removal of wildlife from their habitats






34. The first species to populate the area






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






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






37. The largest population that an area can support






38. All the members of one species in a particular area






39. A relationship in which both species benefit






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






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






42. Heat from the Earth's interior






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






44. An organism that breaks down wastes and dead organisms






45. The organism that the parasite lives in or on






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






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






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






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






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