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






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






3. A consumer that eats both plants and animals






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






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






6. The organism that the parasite lives in or on






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






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






9. A relationship in which both species benefit






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






11. Organism that does the killing






12. The first species to populate the area






13. The effect of the IV






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






15. The amount of food production in a given area






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






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






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






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






20. A consumer that eats only plants






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






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






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






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






25. A nonliving part of an organism's habitat






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






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






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






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






30. Organism that is killed






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






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






33. An environmental factor that causes a population to decrease






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






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






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






37. Leaving a population






38. The number of different species in an area






39. Anything that harms an organism






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






41. Resources supplied by nature






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






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






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






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






46. Situation in which people acting individually and in their own interest use up commonly available but limited resources - creating disaster for the entire community






47. Wheat -bairley -corn....carbohydrates






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






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






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