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






2. Moving into a population






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






4. The practice of reducing energy use






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






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






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






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






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






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






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






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






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






14. Struggle between organisms to survive in a habitat with limited resources






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






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






17. A graph that uses dots to compare rate of change over time






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






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






20. Flaw in design of procedure






21. A nonliving part of an organism's habitat






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






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






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






25. Anything in the environment that is used by people






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






27. A resource that is not able to be reused - or cannot be replenished quickly






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






29. The effect of the IV






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






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






32. The amount of food production in a given area






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






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






35. Water stored in underground layers of soil and rock






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






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






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






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






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






41. Resources supplied by nature






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






43. The number of different species in a given area






44. A living part of an organism's habitat






45. The process by which molecules of liquid absorb energy and change to gas






46. Something that breaks down into soil






47. Leaving a population






48. A material that cannot be recycled or reused






49. The movement or organisms from one place to another






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







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