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






2. Mistake in following procedure






3. An organism that breaks down wastes and dead organisms






4. The study of how living and nonliving things interact






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






6. Liphids - proteins - and carbohydrates






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






8. A study that compares the costs and benefits to society of providing a public good






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






10. Illegal killing or removal of wildlife from their habitats






11. The effect of the IV






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






13. A material that cannot be recycled or reused






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






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






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






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






18. Organism that is killed






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






20. The first species to populate the area






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






22. An environmental factor that causes a population to decrease






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






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






25. Resources supplied by nature






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






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






28. A chart with bars






29. Water stored in underground layers of soil and rock






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






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






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






33. A consumer that eats only plants






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






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






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






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






38. Flaw in design of procedure






39. Mass destruction of most species






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






41. The largest population that an area can support






42. Rice - corn - potatos - wheat - soy beans






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






44. The series of predictable changes that occur in a community over time






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






46. The variable that you manipulate






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






48. Anything in the environment that is used by people






49. A living part of an organism's habitat






50. A consumer that eats both plants and animals