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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. Resources supplied by nature






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






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






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






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






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






7. A nonliving part of an organism's habitat






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






9. A graph that highlights segments of a circle to show simple distribution patterns






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






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






12. The organism that the parasite lives in or on






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






14. An organism that breaks down wastes and dead organisms






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






16. The movement or organisms from one place to another






17. A consumer that eats both plants and animals






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






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






20. The variable that you manipulate






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






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






23. Anything that harms an organism






24. The study of how living and nonliving things interact






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






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






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






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






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






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






31. Something that breaks down into soil






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






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






34. Type of graph most often used for categorical data






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






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






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






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






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






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






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






42. Flaw in design of procedure






43. The first species to populate the area






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






45. A relationship in which both species benefit






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






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






48. The amount of food production in a given area






49. Heat from the Earth's interior






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