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Ecosystems Chapter Exam

Exam Instructions:

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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Question 1 1. Which of the following concepts best describes a chlorophyll molecule absorbing light and changing it into chemical energy?

Question 2 2. Why can cheetahs and lions coexist together on the plains of the Masai Mara National Reserve?

Question 3 3. Our understanding of decomposers has allowed scientists to create _____.

Question 4 4. The greenhouse gas that humans release the most is:

Question 5 5. In a typical ecosystem, what percentage of the energy produced by the autotrophs then consumed by the primary consumers will be passed along to the secondary consumers?

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Question 6 6. Which of the following is not a way in which carbon can exit living plant material in the carbon cycle?

Question 7 7. Which of the following is true about all environments?

Question 8 8. Which of the following is NOT a source of nitrogen that is available to plants?

Question 9 9. From smallest to largest, what is the proper order of the following ecological terms?

Question 10 10. The three types of biodiversity are:

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Question 11 11. Which of the following is the best explanation for why we study the carbon cycle on a global scale and not as much in specific local ecosystems?

Question 12 12. What can an herbivore be categorized as?

Question 13 13. An organism that feeds on waste products or dead organic material is called a(n):

Question 14 14. Living organisms are composed of 65% by weight.

Question 15 15. Which of the following actions is NOT an example of habitat destruction?

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Question 16 16. Which of the following is not a density-dependent factor?

Question 17 17. Which of the following is FALSE about atmospheric carbon dioxide levels?

Question 18 18. What is biogeochemical cycling?

Question 19 19. The Second Law of Thermodynamics tells us that:

Question 20 20. Which fossil fuel releases the greatest amount of carbon dioxide, sulfur dioxide and nitrogen oxides when burned?

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Question 21 21. In the environment, how is the role of a decomposer different from that of a scavenger?

Question 22 22. Species that have been transplanted from their original location to another location and have negative effects on the native organisms and environment are called:

Question 23 23. What constitutes a food web?

Question 24 24. Identify the statement that describes global ecology.

Question 25 25. Put the following elements in order of abundance by weight in living organisms, starting with the most abundant, and ending with the least abundant: iron, copper, phosphorus, oxygen, and hydrogen.

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Question 26 26. Which of the following processes takes carbon out of the short-term carbon cycle?

Question 27 27. Choose the four major environmental problems that are occurring on the global scale.

Question 28 28. What are the three major greenhouse gases in the Earth's atmosphere?

Question 29 29. Living organisms use carbon for all of the following, except:

Question 30 30. A hurricane hit an island where the only trees were palm trees. What might a biologist say about the ecosystem after the hurricane?

Ecosystems Chapter Exam Instructions

Choose your answers to the questions and click 'Next' to see the next set of questions. You can skip questions if you would like and come back to them later with the yellow "Go To First Skipped Question" button. When you have completed the practice exam, a green submit button will appear. Click it to see your results. Good luck!

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