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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 group that does not receive the experimental treatment.






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






3. A relationship in which both species benefit






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






5. In an experiment - the group of participants that recieves the manipulation






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






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






8. The number of different species in an area






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






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






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






12. A living part of an organism's habitat






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






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






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






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






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






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






19. Type of graph most often used for categorical data






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






21. The study of how living and nonliving things interact






22. Illegal killing or removal of wildlife from their habitats






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






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






25. A consumer that eats only plants






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






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






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






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






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






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






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






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






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






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






36. A chart with bars






37. The number of different species in a given area






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






39. The organism that the parasite lives in or on






40. The first species to populate the area






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






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






43. The practice of reducing energy use






44. Organism that does the killing






45. The study of the impact of humans on the environment






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






47. Something that breaks down into soil






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






49. A consumer that eats only animals






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