BIOLOGY-CUSTOM PACKAGE W/CODE
14th Edition
ISBN: 9781269866415
Author: Campbell
Publisher: PEARSON C
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Chapter 27.4, Problem 2CC
WHAT IF Ø What would the discovery of a bacterial species that is a methanogen imply about the evolution of the methane-producing pathway?
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Chapter 27 Solutions
BIOLOGY-CUSTOM PACKAGE W/CODE
Ch. 27.1 - Prob. 1CCCh. 27.1 - Contrast the cellular and DNA structures of...Ch. 27.1 - Prob. 3CCCh. 27.2 - Although rare on a per gene basis, new mutations...Ch. 27.2 - Distinguish between the three mechanisms by which...Ch. 27.2 - In a rapidly changing environment, which bacterial...Ch. 27.2 - WHAT IF? If a nonpathogenic bacterium were to...Ch. 27.3 - Distinguish between the four major modes of...Ch. 27.3 - A bacterium requires only the amino acid...Ch. 27.3 - WHAT IF? Describe what you might eat for a...
Ch. 27.4 - Explain how molecular systematics and metagenomics...Ch. 27.4 - WHAT IF What would the discovery of a bacterial...Ch. 27.5 - Explain how prokaryotes, though small, can be...Ch. 27.5 - MAKE CONNECTIONS Review Figure 10.6. Then...Ch. 27.6 - Identify at least two ways that prokaryotes have...Ch. 27.6 - Prob. 2CCCh. 27.6 - Prob. 3CCCh. 27 - Describe features of prokaryotes that enable them...Ch. 27 - Mutations are rare and prokaryotes reproduce...Ch. 27 - Describe the range of prokaryotic metabolic...Ch. 27 - How have molecular data informed prokaryotic...Ch. 27 - In what ways are prokaryotes key to the survivaI...Ch. 27 - Prob. 27.6CRCh. 27 - Genetic variation in bacterial populations cannot...Ch. 27 - Photoautotrophs use (A) light as an energy source...Ch. 27 - Which of the following statements is not true? (A)...Ch. 27 - Prob. 4TYUCh. 27 - Prob. 5TYUCh. 27 - Prob. 6TYUCh. 27 - Prob. 7TYUCh. 27 - SCIENTIFIC INQUIRY INTERPRET THE DATA The...Ch. 27 - WRITE ABOUT A THEME: ENERGY In a short essay...Ch. 27 - SYNTHESIZE YOUR KNOWLEDGE Explain how the small...
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- Why might chemosynthetic communities exist only in places like the deep-ocean floor rather than across a wide range of land and sea habitats, the way photosynthesis-based communities are?arrow_forwardWhat is the origin of oxygen on earth? What would happen to earth’s supply of oxygen if photosynthesis suddenly were to cease?arrow_forwardHow do methane effects human health in climate change? What are solutions we can reduce methane use in our enviroment to prevent climate change?arrow_forward
- How would the nitrogen cycle operate in the absence of bacteria and archaeons?arrow_forwardHow could the biological carbon cycle have worked on the primitive Earth, where oxygen gas was essentially absent from the atmosphere and oceans?arrow_forwardIf space exploration revealed a planet that had the water, sunlight, and climate, necessary to maintain good plant life, would it be possible to produce oxygen and food necessary to sustain human life?arrow_forward
- How does the ocean remove carbon dioxide from Earth’s atmosphere? What role do tiny marine organisms, such as foraminifera, play in the removal of carbon dioxide?arrow_forwardWhich of the following oxygenic phototrophs are believed to have generate the majority of oxygen gas in Earth’s atmosphere? a. Chlorobium b. Chloroflexus c. Clostridium d. Cyanobacteria e. purple bacteriaarrow_forwardExplain why Cyanobacteria is considered the first photosynthetic organisms in the earth’s revolution?arrow_forward
- Chemolithrophs near hydrothermal vents support a variety of other life forms there. Explain now their role is analogous to that of photosynthetic organisms in the terrestrial environment.arrow_forwardWhat is the global warming potential of methane when compared to carbon dioxide?arrow_forwardClimate change and global warming patterns have caused ocean temperatures to increase over the last 50 years. How would the researchers algae farm help fight climate change? What would be the advantage of the algae farm beyond the production of biofuel?arrow_forward
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Metabolic Diversity (photo-/chemo-, auto-/hetero-, litho-/organo-trophy) | GEO GIRL; Author: GEO GIRL;https://www.youtube.com/watch?v=vyLAm1CYIsI;License: Standard YouTube License, CC-BY