Praxis Middle School Science: Key Aspects of Ecology 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. What does the term colonization mean in terms of organisms?

Question 2 2. Which of the following is true about biological clocks?

Question 3 3. What is niche differentiation?

Question 4 4. Which concept best describes ecology?

Question 5 5. Which of the following is a key feature of the life histories of species that have a type III survivorship curve?

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Question 6 6. According to the r/K selection theory, an r-selected species has which of the following characteristics?

Question 7 7. 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 8 8. Which specific field of science gave rise to the theoretical idea of island biogeography and its counterpart, island biodiversity?

Question 9 9. How have humans caused habitat fragmentation for animal and plant species around the world?

Question 10 10. What is the major difference between competitive exclusion and local extinction?

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Question 11 11. Which of the following is true about all environments?

Question 12 12. What is a niche?

Question 13 13. What is the effect of predation on prey?

Question 14 14. Why do we get 'jet lag' when we fly to different time zones?

Question 15 15. What three components are involved in communication?

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Question 16 16. What is dispersion?

Question 17 17. The lowest, most basic level at which ecology is studied is:

Question 18 18. Which type of factors has the biggest impact on an organism's life history?

Question 19 19. Prairie dogs often live in large colonies. When one prairie dog senses danger, it quickly alerts others of the danger. This is an example of:

Question 20 20. Why can cheetahs and lions coexist together on the plains of the Masai Mara National Reserve?

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Question 21 21. 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 22 22. What is a population?

Question 23 23. What can an herbivore be categorized as?

Question 24 24. When faced with danger or competition, some organisms will care only for themselves and ignore the needs of others. Which term best explains this behavior?

Question 25 25. Which of the following is not an indirect indicator that biologists can use to estimate a population's density?

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Question 26 26. Animals that are awake during the day are

Question 27 27. Which term is used to describe how plants spread their seeds?

Question 28 28. Which of the following is not an abiotic factor?

Question 29 29. Why are chemical signals useful?

Question 30 30. What term best describes a group of individuals of the same species cooperatively living together?

Praxis Middle School Science: Key Aspects of Ecology 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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