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






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






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






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






5. The practice of reducing energy use






6. Something that breaks down into soil






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






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






9. An organism that breaks down wastes and dead organisms






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






11. Heat from the Earth's interior






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






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






14. The rate of which a plant grows at






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






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






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






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






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






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






21. Water stored in underground layers of soil and rock






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






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






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






25. The study of how living and nonliving things interact






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






27. An environmental factor that causes a population to decrease






28. Organism that is killed






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






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






31. Organism that does the killing






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






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






34. The amount of food production in a given area






35. Wheat -bairley -corn....carbohydrates






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






37. Leaving a population






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






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






40. The first species to populate the area






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






42. Beginning of urban cities - switch from man power to fossil fuels - machinery and factories are prevalent






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






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






45. Mistake in following procedure






46. The number of different species in a given area






47. A chart with bars






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






49. A relationship in which both species benefit






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