Campbell Biology with Mastering Biology for University of South Carolina
10th Edition
ISBN: 9781269866286
Author: Reece
Publisher: PEARSON C
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Chapter 27.3, Problem 3CC
WHAT IF? Ø Describe what you might eat for a typical meal if humans, like cyanobacteria, could fix nitrogen.
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Chapter 27 Solutions
Campbell Biology with Mastering Biology for University of South Carolina
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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- Nitrogen-fixing bacteria live throughout the ocean, from its sunlit upper waters to 200 meters (650 Feet) beneath its surface. Recall that nitrogen is a limiting factor in many habitats. What effect would an increase in populations of marine nitrogen-fixers have on carbon uptake and primary productivity in those waters?arrow_forwardThinking Critically Does the ocean provide a substantial percentage of all protein needed in human nutrition? Of all animal protein? What is the most valuable biological resource? The fastestgrowing fishery?arrow_forwardNitrogen deficiency stunts plant growth and causesleaves to turn yellow and then die. Why does nitrogendeficiency cause these symptoms? Hint: Think aboutwhich biological molecules incorporate nitrogen atoms.arrow_forward
- HAT IF? If global warming increases average temperatures on Earth by 4°C in this century, predict whichbiome is most likely to replace tundra in some locationsas a result. Explain your answerarrow_forward1. Which among the organisms in example 2 (food web) receives the least amount of energy? (except decomposers).arrow_forward7. Can a food chain ever begin with a consumer? Explain8. Why are certain populations vital in a specific biome?arrow_forward
- A food chain would be a better resource than a food web to answer which question? How does energy move from an organism in one trophic level to an organism on the next trophic level? How does energy move within a trophic level? What preys on grasses? How is organic matter recycled in a forest?arrow_forward2. Large predatory marine fish (ex: tuna, swordfish, marlin, shark, etc.) usually eat at the third through seventh trophic levels. Is it efficient for humans to rely heavily on these species as food sources? Why or why not?arrow_forward1. Where did the energy go due to losses? 2. Which among the organism in example 2 (food web) receives the least amount of energy? (except decomposers). 3.. Which has the least amount of energy?arrow_forward
- 5. Why is a food web a better representation of the feeding relationships of organisms than a food chain?arrow_forward21. Decomposers are critical in the nitrogen and phosphorus cycles because they: are responsible for the fixation of the nutrients into a bioavailable form allow for the cycling of the nutrients within the biosphere are involved in processes that return the nutrients to their major reservoirs More than one of these choices is correct.arrow_forwardDon't copy from internet. Thanks!! 1. When does the food chain starts? How come it never exceeds more than 6 organisms? 2. What are the 3 ecological pyramids? Relate the 3 pyramids on the food chain.arrow_forward
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