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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. The organism that the parasite lives in or on






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






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






4. People who survive by searching for wild plants and animals; always move in small groups






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






6. The amount of food production in a given area






7. A study that compares the costs and benefits to society of providing a public good






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






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






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






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






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






13. Organism that does the killing






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






15. A living part of an organism's habitat






16. The group that does not receive the experimental treatment.






17. A consumer that eats only animals






18. An organism that breaks down wastes and dead organisms






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






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






21. The practice of reducing energy use






22. The number of different species in an area






23. Mass destruction of most species






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






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






26. Possible to use again






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






28. The study of how living and nonliving things interact






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






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






31. A relationship that involves one organism living on or inside another organism and harming it






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






33. Resources supplied by nature






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






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






36. Liphids - proteins - and carbohydrates






37. Water stored in underground layers of soil and rock






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






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






40. Type of graph most often used for categorical data






41. The variable that you manipulate






42. The first species to populate the area






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






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. Organism that is killed






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






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






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






49. Heat from the Earth's interior






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







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