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






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






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






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






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






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






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






8. The first species to populate the area






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






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






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






12. The organism that the parasite lives in or on






13. The variable that you manipulate






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






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






16. The number of different species in a given area






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






18. The amount of food production in a given area






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






20. Possible to use again






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






22. The effect of the IV






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






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






25. Flaw in design of procedure






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






27. A carnivore that feeds on the bodies of dead organisms






28. The rate of which a plant grows at






29. Something that breaks down into soil






30. Mistake in following procedure






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






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






33. A consumer that eats only plants






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






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






36. A chart with bars






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






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






39. A material that cannot be recycled or reused






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






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






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






43. A consumer that eats both plants and animals






44. Wheat -bairley -corn....carbohydrates






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






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






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






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






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






50. The introduction of pesticides and high-yield grains and better management during the 1960s and 1970s which greatly increased agricultural productivity