Exam 1 - BLY 121- Exam 1 Covering Chapter 1-6 Chapter 1 1....

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BLY 121- Exam 1 Covering Chapter 1-6 C. S. Major Chapter 1 1. Which statement about spontaneous generation is false? A. Pasteur demonstrated that it did not occur under normal laboratory conditions. B. It apparently occurred at least once—when life on Earth began. C. It occurs every time a new species evolves from a preexisting species. D. It addresses the formation of living cells from previously nonliving material. 2. Which of the following is true? A. Evolution is progressive, meaning that species always get larger, more complex, or “better” in some sense. B. Individuals as well as populations change when natural selection occurs, individuals with high levels of fitness are stronger or bigger or “more dominant.” C. Evolution is a change in the characteristics of a population over time. D. Individuals with high levels of fitness are stronger or bigger or “more dominant.” 3. Use the tree of life below to determine which of the following is most closely related to humans: A. Archaea B. Fungi C. Ciliates D. Land plants E. Bateria 4. In the Linnaean classification system, which taxon would generally include the largest number of species? A. family B. class C. order D. genus 1
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E. order 2
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5. Following preliminary observations, scientists develop questions to pursue through experimentation. Plausible, TESTABLE answers to these questions are called __________________. A. results B. conclusions C. hypotheses D. predictions E. observations 6. What molecule was used to determine the “correct” tree of life? A. DNA B. Carbohydrates C. Proteins D. Lipids E. RNA Chapter 2 7. Each element has a characteristic number of ___________. A. Protons B. Neutrons. C. Quarks D. Electrons E. Isotrons 8. Most cells are 96 percent of 4 elements which of the elements is NOT one of these four elements? A. carbon (C) B. hydrogen (H) C. potassium (K) D. oxygen (O) E. helium (He) 9. Which of the following bonds is the most stable (strongest)? A. non-polar covalent B. polar covalent C. ionic bonds D. hydrophilic bonds 10. The first law of thermodynamics states that energy ______________________. A. energy is conserved— but can be created B. energy is conserved—it cannot be created or destroyed C. energy is not conserved—it used up in every reaction. D. energy occurs in the form of entropy which can be conserved 11. Which of the following is a correct statement pertaining to redox reactions? A. In a redox reaction, one molecule loses electrons (is oxidized), another gains electrons (is reduced), and an electron donor is always paired with an electron acceptor. 3
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B. In a redox reaction, one molecule gains electrons (is oxidized), another loses electrons (is reduced), and an electron donor is always paired with an electron acceptor. C.
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Exam 1 - BLY 121- Exam 1 Covering Chapter 1-6 Chapter 1 1....

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