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






2. Type of graph most often used for categorical data






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






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






5. Flaw in design of procedure






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






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






8. An environmental factor that causes a population to decrease






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






10. The organism that the parasite lives in or on






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






12. Resources supplied by nature






13. An organism that can make it's own food






14. Mass destruction of most species






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






16. A relationship in which both species benefit






17. Water stored in underground layers of soil and rock






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






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






20. Liphids - proteins - and carbohydrates






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






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






23. Wheat -bairley -corn....carbohydrates






24. The number of different species in an area






25. The practice of reducing energy use






26. The introduction of pesticides and high-yield grains and better management during the 1960s and 1970s which greatly increased agricultural productivity






27. A consumer that eats both plants and animals






28. The amount of food production in a given area






29. The variable that you manipulate






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






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






32. A consumer that eats only plants






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






34. The movement or organisms from one place to another






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






36. Rice - corn - potatos - wheat - soy beans






37. The number of different species in a given area






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






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






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






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






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






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






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






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






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






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






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






49. The effect of the IV






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