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






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






3. A consumer that eats both plants and animals






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






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






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






7. Organism that is killed






8. Possible to use again






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






10. A relationship in which both species benefit






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






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






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






14. Leaving a population






15. Wheat -bairley -corn....carbohydrates






16. Something that breaks down into soil






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






18. Flaw in design of procedure






19. Anything in the environment that is used by people






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






21. The process by which a gas changes to a liquid






22. Mistake in following procedure






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






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






25. The practice of reducing energy use






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






27. The rate of which a plant grows at






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






29. Anything that harms an organism






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






31. The practice of growing - breeding - and caring for plants and animals that are used for food - clothing - transportation - and other uses






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






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






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






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






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






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






38. An organism that breaks down wastes and dead organisms






39. Type of graph most often used for categorical data






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






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






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






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






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






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






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






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






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






49. The largest population that an area can support






50. An environmental factor that causes a population to decrease