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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. Illegal killing or removal of wildlife from their habitats






2. Anything that harms an organism






3. Water stored in underground layers of soil and rock






4. The organism that the parasite lives in or on






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






6. The effect of the IV






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






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






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






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






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






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






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






14. A relationship in which both species benefit






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






16. A living part of an organism's habitat






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






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






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






20. Organism that is killed






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






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






23. The amount of food production in a given area






24. Flaw in design of procedure






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






26. An organism that breaks down wastes and dead organisms






27. Moving into a population






28. The rate of which a plant grows at






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






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






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






32. A relationship in which one species benefits and the other is neither helped nor harmed






33. Something that breaks down into soil






34. A nonliving part of an organism's habitat






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






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






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






38. A consumer that eats only animals






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






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






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






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






43. The number of different species in an area






44. The theory that increasing carbon dioxide in the atmosphere will raise Earth's average temperature






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






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






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






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






49. The largest population that an area can support






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