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






2. The movement or organisms from one place to another






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






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






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






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






7. Anything in the environment that is used by people






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






9. A higer demand of that limited product the the price goes up






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






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






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






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






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






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






16. Wheat -bairley -corn....carbohydrates






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






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






19. The group that does not receive the experimental treatment.






20. The effect of the IV






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






22. Resources supplied by nature






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






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






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






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






27. The number of different species in a given area






28. The number of different species in an area






29. Heat from the Earth's interior






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






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






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






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






34. A relationship in which both species benefit






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






36. A consumer that eats only plants






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






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






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






40. The practice of reducing energy use






41. Water stored in underground layers of soil and rock






42. Anything that harms an organism






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






44. The study of how living and nonliving things interact






45. Something that breaks down into soil






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






47. Illegal killing or removal of wildlife from their habitats






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






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






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