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






2. The rate of which a plant grows at






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






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






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






6. The practice of reducing energy use






7. Leaving a population






8. The trapping of heat near Earth's surface by certain gases (carbon dioxide - water vapor and other gases) in the atmosphere






9. Situation in which people acting individually and in their own interest use up commonly available but limited resources - creating disaster for the entire community






10. The number of different species in a given area






11. The variable that you manipulate






12. A material that cannot be recycled or reused






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






14. A consumer that eats only animals






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






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






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






18. A resource that is able to be reused - or can be replenished quickly






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






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






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






22. The number of different species in an area






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






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






25. Organism that is killed






26. Flaw in design of procedure






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






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






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






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






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






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






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






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






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






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






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






38. The first species to populate the area






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






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






41. Liphids - proteins - and carbohydrates






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






43. Heat from the Earth's interior






44. The effect of the IV






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






46. Mass destruction of most species






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






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






49. Possible to use again






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