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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. A group of land ecosystems with similar climates and organisms






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






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






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






6. A higer demand of that limited product the the price goes up






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






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






9. The amount of food production in a given area






10. Wheat -bairley -corn....carbohydrates






11. The organism that the parasite lives in or on






12. A grid that displays the data plotted in a chart.






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






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






15. Possible to use again






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






17. A living part of an organism's habitat






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






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






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






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






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






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






24. A consumer that eats both plants and animals






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






26. Heat from the Earth's interior






27. A chart with bars






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






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






30. The process by which molecules of liquid absorb energy and change to gas






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






32. The movement or organisms from one place to another






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






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






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






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






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






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






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






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






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






42. The rate of which a plant grows at






43. Something that breaks down into soil






44. Mistake in following procedure






45. Leaving a population






46. The largest population that an area can support






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






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






49. Water stored in underground layers of soil and rock






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