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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 pattern of overlapping food chains in an ecosystem.






2. The largest population that an area can support






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






4. Type of graph most often used for categorical data






5. A consumer that eats only plants






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






7. Mass destruction of most species






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






9. The first species to populate the area






10. Leaving a population






11. Organism that does the killing






12. An organism that breaks down wastes and dead organisms






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






14. A nonliving part of an organism's habitat






15. Heat from the Earth's interior






16. The study of how living and nonliving things interact






17. Resources supplied by nature






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






19. Organism that is killed






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






21. Countries with strong economies and a high quality of life






22. Water stored in underground layers of soil and rock






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






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






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






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






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






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






29. Flaw in design of procedure






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






31. When a large fraction of the resource has been used up






32. Something that breaks down into soil






33. Illegal killing or removal of wildlife from their habitats






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






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






36. Liphids - proteins - and carbohydrates






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






38. An environmental factor that causes a population to decrease






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






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






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






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






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






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






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






46. The effect of the IV






47. A chart with bars






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






49. The number of different species in an area






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