Test your basic knowledge |

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. Liphids - proteins - and carbohydrates






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






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






4. The number of different species in an area






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






6. A consumer that eats both plants and animals






7. Leaving a population






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






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






10. Organism that is killed






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






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






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






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






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






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






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






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






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






20. An environmental factor that causes a population to decrease






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






22. An interaction in which one organism kills and eats another






23. The effect of the IV






24. A chart with bars






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






26. A consumer that eats only plants






27. Illegal killing or removal of wildlife from their habitats






28. Type of graph most often used for categorical data






29. The first species to populate the area






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






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






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






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






34. An organism that breaks down wastes and dead organisms






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






36. A material that cannot be recycled or reused






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






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






39. Resources supplied by nature






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






41. The practice of reducing energy use






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






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






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






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






46. The organism that the parasite lives in or on






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






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






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






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