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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 movement or organisms from one place to another






2. A material that cannot be recycled or reused






3. A group of organisms that are physically similar and can mate with each other and produce offspring that can also mate and reproduce






4. Moving into a population






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






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






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






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






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






10. A chart with bars






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






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






13. The variable that you manipulate






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






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






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






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






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






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






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






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






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






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






24. Leaving a population






25. Mistake in following procedure






26. Something that breaks down into soil






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






28. An environmental factor that causes a population to decrease






29. Water stored in underground layers of soil and rock






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






31. The practice of reducing energy use






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






33. Farmers who raise food and animals mainly to feed their own families






34. The organism that the parasite lives in or on






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






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






37. A nonliving part of an organism's habitat






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






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






40. The first species to populate the area






41. Type of graph most often used for categorical data






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






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






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






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






46. Resources supplied by nature






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






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






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






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