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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. Water stored in underground layers of soil and rock






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






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






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






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






6. Countries with strong economies and a high quality of life






7. Organism that does the killing






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






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






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






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






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






13. A consumer that eats only plants






14. The rate of which a plant grows at






15. A material that cannot be recycled or reused






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






17. A consumer that eats only animals






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






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






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






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






22. The variable that you manipulate






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






24. Illegal killing or removal of wildlife from their habitats






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






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






27. A living part of an organism's habitat






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






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






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






31. The organism that the parasite lives in or on






32. An organism that breaks down wastes and dead organisms






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






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






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






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






37. The effect of the IV






38. Mass destruction of most species






39. A consumer that eats both plants and animals






40. The number of different species in an area






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






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






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






44. Mistake in following procedure






45. Leaving a population






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






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






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






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






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