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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 obtains energy by feeding on other organisms






2. The amount of food production in a given area






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






4. The organism that the parasite lives in or on






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






6. A chart with bars






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






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






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






10. An environmental factor that causes a population to decrease






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






12. The movement or organisms from one place to another






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






14. The largest population that an area can support






15. A state of poor nutrition; lacking enough calories or variety in diet






16. The effect of the IV






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






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






19. Wheat -bairley -corn....carbohydrates






20. Anything in the environment that is used by people






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






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






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






24. Possible to use again






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






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






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






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






29. A material that cannot be recycled or reused






30. Flaw in design of procedure






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






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






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






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






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






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






37. The variable that you manipulate






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






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






40. Liphids - proteins - and carbohydrates






41. Mass destruction of most species






42. A resource that is either always available or is naturally replaced in a relatively short time






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






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






45. Heat from the Earth's interior






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






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






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






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






50. Organism that is killed