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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 disappearance of all members of a species from Earth






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






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






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






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






6. The number of different species in a given area






7. Mistake in following procedure






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






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






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






11. Organism that does the killing






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






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






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






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






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






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






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






19. A living part of an organism's habitat






20. The effect of the IV






21. Evaluation of the short-term and long-term risks associated with a particular activity or hazard






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






23. A resource that is not able to be reused - or cannot be replenished quickly






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






25. Type of graph most often used for categorical data






26. A nonliving part of an organism's habitat






27. Moving into a population






28. A consumer that eats both plants and animals






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






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






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






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






33. Mass destruction of most species






34. Organism that is killed






35. The movement or organisms from one place to another






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






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






38. The practice of reducing energy use






39. The number of different species in an area






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






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






42. Possible to use again






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






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






45. A relationship in which both species benefit






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






47. An organism that breaks down wastes and dead organisms






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






49. A consumer that eats only animals






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