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Understanding 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!

Page 1

Question 1 1.

Which of the following statements about estuaries are true?

A. They are the gateway to freshwater breeding grounds of some marine animals

B. They are the breeding grounds for many types of aquatic animals

C. Estuaries are resistant to pollution because the constant inflow of freshwater flushes the pollutants out into the ocean.

D. They are areas where freshwater streams or rivers merge with the sea

Question 2 2. What is a habitat?

Question 3 3. Which has resulted in an increase in the prevalence of invasive species?

Question 4 4. Which of the following actions is NOT an example of habitat destruction?

Question 5 5. What constitutes a food web?

Page 2

Question 6 6. During an ice age, we see the covering of large areas with glaciers. In other words, we see episodes of fairly extensive what?

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

Question 8 8. Consider the lists below and indicate which list BEST describes the three variations in the earth's orbit as explained in the Milankovitch theory.

Question 9 9. The chaparral biome is characterized by what?

Question 10 10. Identify the conversion which represents nitrification.

Page 3

Question 11 11. A chaparral plant that is usually only seen in the first couple of years after a fire is also called what?

Question 12 12. Identify the statement that is NOT true about acid rain.

Question 13 13. Which of the following statements is true about the Mesozoic period that lasted between 65 and 250 million years ago?

Question 14 14. What kinds of conditions are typical of areas with temperate deciduous forests?

Question 15 15. Which type of succession would occur in an area where lava covered an entire forest?

Page 4

Question 16 16. What is the difference between species diversity and genetic diversity?

Question 17 17. What can an herbivore be categorized as?

Question 18 18. Dr. Smith is studying algae. Would she consider ponds in her research on ecological diversity? Why or why not?

Question 19 19. Which of the following is NOT a source of nitrogen that is available to plants?

Question 20 20. What is a niche?

Page 5

Question 21 21. Which of the following is true about savannas?

Question 22 22. How might the changing continental positions affect glaciation?

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. On a total net basis, which biome is the most productive?

Question 25 25. Which of the following is defined as a change in the Earth's orbit around the sun, from circular to oblong?

Page 6

Question 26 26. Which of the following is not a component of the phosphorus cycle?

Question 27 27. What is the largest pool of carbon on the planet?

Question 28 28. What is the term used to describe the removal of sediment from the bottom of an aquatic environment?

Question 29 29. After a glacier recedes, the moss and lichens that grow on the newly exposed rock surfaces are called what?

Question 30 30. What is the appropriate definition of ecological succession?

Understanding 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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