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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 first species to populate the area






2. Measure of quantity of food produced on a given area of land with limited inputs of energy and resources






3. The organism that the parasite lives in or on






4. Leaving a population






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






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






7. The issue where humans don't take care of the Earth.






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






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






11. A chart with bars






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






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






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






15. Anything that harms an organism






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






17. Heat from the Earth's interior






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






19. Illegal killing or removal of wildlife from their habitats






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






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






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






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






24. Water stored in underground layers of soil and rock






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






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






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






28. The amount of food production in a given area






29. Wheat -bairley -corn....carbohydrates






30. Mass destruction of most species






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






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






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






34. A consumer that eats both plants and animals






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






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






37. The effect of the IV






38. A resource that is able to be reused - or can be replenished quickly






39. The continuous process by which water moves from Earth's surface to the atmosphere and back






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






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






42. The movement or organisms from one place to another






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






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






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






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






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






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






49. Possible to use again






50. The practice of reducing energy use