KEY_Exam1[1]

KEY_Exam1[1] - This exam in worth 50 points in the whole...

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Evolutionary Biology Exam I Part I, Fall 2008 A. Multiple Choice Questions. Choose the best possible answer . Use the bubble sheet. (1 pt. each) 1. Which of the following statements is not true about a hypothesis? (A) It always withstands the test of experiments. (B) It is an explanation that accounts for careful observations. (C) It is a proposition that might be true. (D) It fits the known facts. (E) It might be rejected in future in light of new information. 2. After Darwin concluded his voyage on the Beagle , he proposed that the process of natural selection was the mechanism for (A) speciation (B) evolution (C) artificial selection (D) overpopulation of finches on the Galapagos Islands (E) sexual selection. 3. The method of reasoning that uses construction of general principles by careful examination of many specific cases is called (A) inductive reasoning (B) hypothetical reasoning (C) theoretical reasoning (D) deductive reasoning (E) experimental reasoning. 4. Which of the following was not one of the beliefs of Darwin's time? (A) The world is fixed and constant. (B) Species were unchangeable over the course of time. (C) Operation of natural laws produces constant change and improvement. (D) A divine creator exists. (E) Various organisms and their structures resulted from a creator's actions. 5. Recent discoveries of microscopic fossils have extended the known history of life to about (A) a few thousand years ago (B) 3.5 billion years ago (C) 4.5 billion years ago (D) 2 billion years ago (E) a few million years ago. 6. Essay on the Principle of Population , written by Thomas Malthus in 1798, influenced Darwin's thoughts as he struggled to understand what mechanisms could be at work to produce evolution. Malthus proposed that populations of animals and plants, including humans (A) evolved from mainland to islands, thus explaining why the island flora and fauna resembled the mainland species so closely (B) increased geometrically in numbers while the nutrients available only increased arithmetically (C) increased geometrically in numbers while the nutrients available increased arithmetically (D) increased arithmetically in numbers while the nutrients available only increased geometrically (E) decreased arithmetically in numbers while the nutrients available increased geometrically. 7. A technique used in dating a rock can be used to accurately predict the age of the fossils occurring in the rocks. This technique involves (A) successive rock layering (B) structural geology (C) developmental geology (D) fossil dating (E) radioactive isotope decay. 8. Today, the fossil record (A) can be dated only with one layer in relation to older layers below and younger layers above, no actual dates can be estimated (B) can be dated reasonably well only with uranium-238 (C) can be dated reasonably well using a variety of radioactive isotopes with known half-lives (D) can be dated precisely, to within a single year, using radioactive isotopes (E) can be dated precisely, to within a single year, using DNA
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KEY_Exam1[1] - This exam in worth 50 points in the whole...

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