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Interaction Among Organisms in the Ecosystem: Help and Review 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. According to this graph, at which elevation is the population density of Species A the highest?

Question 2 2. Which of the following is a major goal of conservation biologists?

Question 3 3. Which type of factors has the biggest impact on an organism's life history?

Question 4 4. If a mosquito feeds on a bird that is infected with the West Nile Virus and then feeds on a human being who then contracts the virus, what role is the mosquito playing in the infection of the person?

Question 5 5. Which of the following is not an indirect indicator that biologists can use to estimate a population's density?

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Question 6 6. What is an ecomorph?

Question 7 7. What is the effect of predation on prey?

Question 8 8. What is an invasive species?

Question 9 9. What do biologists think the most common reason for migration is?

Question 10 10. Which of these large organisms has a type I survivorship curve?

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Question 11 11. When a bee gathers nectar from a certain type of flower to make honey and in the process pollinates the flower, what kind of relationship exists between the bee and the flower?

Question 12 12. Which of the following is a function of the National Park Service in the United States?

Question 13 13. According to the r/K selection theory, an r-selected species has which of the following characteristics?

Question 14 14. What is coevolution?

Question 15 15. What is dispersion?

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Question 16 16. Which of the following is not a feature of a metapopulation?

Question 17 17. Which statement accurately portrays Monarch and Viceroy butterflies?

Question 18 18. If an introduced species survives in its new environment and starts breeding, what are the likely consequences?

Question 19 19. Which of the following processes provides balance within the native habitat of a species, but is no longer present once the species is introduced into a new habitat?

Question 20 20. What is a characteristic of animals that use chemicals for defense?

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Question 21 21. Which of the following is a key feature of the life histories of species that have a type III survivorship curve?

Question 22 22. What is a wildlife corridor?

Question 23 23. What is commensalism?

Question 24 24. According to metapopulation theory, what will happen when a population of a particular species goes locally extinct in a particular patch of habitat?

Question 25 25. What is niche differentiation?

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Question 26 26. Which term is used to describe how plants spread their seeds?

Question 27 27. What is the major difference between competitive exclusion and local extinction?

Question 28 28. What usually happens in a natural population as it approaches its carrying capacity?

Question 29 29. Which of the following is a true statement about introduced species?

Question 30 30. Which of the following is true about amensalism?

Interaction Among Organisms in the Ecosystem: Help and Review 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!

Introduction to Environmental Science: Help and Review  /  Science Courses
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