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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. An organism that breaks down wastes and dead organisms






2. The effect of the IV






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






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






5. Organism that is killed






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






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






8. Possible to use again






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






10. The variable that you manipulate






11. An environmental factor that causes a population to decrease






12. Leaving a population






13. Something that breaks down into soil






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






15. The amount of food production in a given area






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






17. A living part of an organism's habitat






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






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






20. A chart with bars






21. A study that compares the costs and benefits to society of providing a public good






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






23. Flaw in design of procedure






24. The largest population that an area can support






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






26. Water stored in underground layers of soil and rock






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






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






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






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






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






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






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






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






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






36. The study of how living and nonliving things interact






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






38. Wheat -bairley -corn....carbohydrates






39. Mass destruction of most species






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






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






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






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






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






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






46. Heat from the Earth's interior






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






48. The organism that the parasite lives in or on






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






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