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






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






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






4. An environmental factor that causes a population to decrease






5. The first species to populate the area






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






7. The number of different species in a given area






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






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






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






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






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






13. Anything that harms an organism






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






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






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






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






18. Type of graph most often used for categorical data






19. A chart with bars






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






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






22. Organism that is killed






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






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






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






26. A consumer that eats only animals






27. The number of different species in an area






28. Mass destruction of most species






29. The study of the impact of humans on the environment






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






31. Countries with less productive economies and a lower quality of life






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






33. Something that breaks down into soil






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






35. A consumer that eats both plants and animals






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






37. The largest population that an area can support






38. People who survive by searching for wild plants and animals; always move in small groups






39. The rate of which a plant grows at






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






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






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






43. Liphids - proteins - and carbohydrates






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






45. Organism that does the killing






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






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






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






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






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