Exam 2 - Question1 (2points)

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Question 1    (2 points) 1. According to the equilibrium model of island biogeography, all of the following contribute to greater species diversity on an  island except  Student response: Correct Response Student Response Answer Choices a. A. a relatively recent formation of the island. b. B. a shorter distance of the island from the  mainland. c. C. a bigger island. d. D. a lower extinction rate on the island. e. E. higher rates of migration to and from the  island.  Score: 0 / 2   Question 2    (2 points) 2. Choose the incorrect statement concerning the introduction of the Cane Toad in Australia.  Student response: Correct Response Student Response Answer Choices a. A. Cane toads were prolific b. B. Cane toads were used as a Biological Control  against the grub of the cane beetle c. C. Cane toads were poisonous d. D. Cane toads were unsuccessful in their mission  to eradicate the cane beetle e. E. Can toads went extinct shortly after their  introduction  Score: 2 / 2   Question 3    (2 points) 3. The introduction of non-native species can be a problem for the following reasons. 
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Student response: Correct Response Student Response Answer Choices a. A. they usually have no natural predators b. B. they often out compete the native species c. C. they are immune to natural selection d. D. all of the above e. E. a and b  Score: 2 / 2   Question 4    (2 points) 4. Which of the following terms best describes the interaction between termites and the protozoans that feed in their gut?  Student response: Correct Response Student Response Answer Choices a. A. commensalism b. B. mutualism c. C. competitive exclusion d. D. ectoparasitism e. E. endoparasitism  Score: 0 / 2   Question 5    (2 points) 5. Dwarf mistletoes are flowering plants that grow on certain forest trees. They obtain nutrients and water from the vascular  tissues of the trees. The trees derive no known benefits from the dwarf mistletoes. Which of the following best describes the  interactions between dwarf mistletoes and trees?  Student response: Correct Response Student Response Answer Choices a. A. mutualism b. B. parasitism c. C. commensalism d. D. facilitation e. E. competition  Score: 0 / 2   Question 6    (2 points) 6. In recent years, sea otter populations have declined in an alarming manner in the Pacific Northwest. This decrease may  be related to: 
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Student response: Correct Response Student Response Answer Choices a. A. An infectious disease. b.
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This note was uploaded on 09/19/2010 for the course BIOL 1510 taught by Professor Chow during the Spring '08 term at Gateway Tech.

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Exam 2 - Question1 (2points)

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