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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. Something that breaks down into soil






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






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






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






5. The largest population that an area can support






6. The variable that you manipulate






7. Organism that is killed






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






9. The number of different species in a given area






10. Leaving a population






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






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






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






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






15. The first species to populate the area






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






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






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






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






20. Illegal killing or removal of wildlife from their habitats






21. The effect of the IV






22. The number of different species in an area






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






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






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






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






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






28. The amount of food production in a given area






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






30. A living part of an organism's habitat






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






32. Resources supplied by nature






33. The study of the impact of humans on the environment






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






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






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






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






38. The movement or organisms from one place to another






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






40. Type of graph most often used for categorical data






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






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






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






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






45. Anything that harms an organism






46. Flaw in design of procedure






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






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






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






50. An organism that breaks down wastes and dead organisms