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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. Flaw in design of procedure






2. A consumer that eats only plants






3. Something that breaks down into soil






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






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






6. An organism's particular role - or how it makes its living






7. Anything in the environment that is used by people






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






9. Leaving a population






10. An environmental factor that causes a population to decrease






11. The organism that the parasite lives in or on






12. Organism that is killed






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






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






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






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






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






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






19. Organism that does the killing






20. Illegal killing or removal of wildlife from their habitats






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






22. The rate of which a plant grows at






23. Heat from the Earth's interior






24. Liphids - proteins - and carbohydrates






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






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






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






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






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






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






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






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






33. A nonliving part of an organism's habitat






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






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






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






37. The first species to populate the area






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






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






40. An organism that breaks down wastes and dead organisms






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






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






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






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






45. The largest population that an area can support






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






47. A material that cannot be recycled or reused






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






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






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