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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 introduction of pesticides and high-yield grains and better management during the 1960s and 1970s which greatly increased agricultural productivity






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






3. Anything that harms an organism






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






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






6. The organism that the parasite lives in or on






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






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






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






10. An organism that breaks down wastes and dead organisms






11. Organism that is killed






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






13. A relationship in which both species benefit






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






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






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






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






18. The effect of the IV






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






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






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






22. Heat from the Earth's interior






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






24. The number of different species in a given area






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






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






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






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






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






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






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






32. The largest population that an area can support






33. The rate of which a plant grows at






34. Moving into a population






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






36. The movement or organisms from one place to another






37. The number of different species in an area






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






39. The first species to populate the area






40. Liphids - proteins - and carbohydrates






41. Something that breaks down into soil






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






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






44. Leaving a population






45. An environmental factor that causes a population to decrease






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






47. Mass destruction of most species






48. Type of graph most often used for categorical data






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






50. A nonliving part of an organism's habitat