AP Environmental Science - Ecosystems: Homework Help 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. An ecosystem is composed of what?

Question 2 2. Which of the following is not an abiotic factor?

Question 3 3. Identify the statement that describes global ecology.

Question 4 4. Within the biogeochemical cycle, where do consumers get most of their elements from, not including oxygen and hydrogen?

Question 5 5. How is it possible to conclude that eutrophication of bodies of water has occured?

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Question 6 6. Which of the following is FALSE about atmospheric carbon dioxide levels?

Question 7 7. Which of the following scenarios is MOST likely to occur if atmospheric carbon dioxide levels continue to rise?

Question 8 8. Which of the following is not a component of the phosphorus cycle?

Question 9 9.

The second law of thermodynamics states that:

I. Energy can neither be created nor destroyed

II. All free energy cannot be converted into usable energy

III. The entropy of a system increases over time

Question 10 10. What is the difference between species diversity and genetic diversity?

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Question 11 11. 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.

Question 12 12. We are only aware of 10,000 species of birds. Given that fact, where would an ornithologist most likely concentrate their research to discover new bird species?

Question 13 13. Which of the following is NOT a source of nitrogen that is available to plants?

Question 14 14. 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?

Question 15 15. Which of the following does NOT contribute to increase in carbon dioxide level in the atmosphere?

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Question 16 16. What is a population?

Question 17 17. _____ ecology deals with the study of the interactions between organisms from multiple communities within a larger region.

Question 18 18. Why can cheetahs and lions coexist together on the plains of the Masai Mara National Reserve?

Question 19 19. A hurricane hit an island where the only trees were palm trees. What might a biologist say about the ecosystem after the hurricane?

Question 20 20. Identify the conversion which represents nitrification.

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Question 21 21. Which of the following processes takes carbon out of the short-term carbon cycle?

Question 22 22. What is a habitat?

Question 23 23. Which of the following is not a way in which carbon can exit living plant material in the carbon cycle?

Question 24 24. Which of the following is true about all environments?

Question 25 25. Which of the following statements is true about the Mesozoic period that lasted between 65 and 250 million years ago?

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Question 26 26. Which of the following organisms is a primary consumer of a prickly pear cactus?

Question 27 27. Which of the following actions is NOT an example of habitat destruction?

Question 28 28. What might be the reaction of a botanist who discovered a new plant in the Saharan desert? Why would they react that way?

Question 29 29. Which of the following is a density-independent factor that regulates population growth?

Question 30 30. Which of the following concepts best describes a chlorophyll molecule absorbing light and changing it into chemical energy?

AP Environmental Science - Ecosystems: Homework Help 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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