CAMPBELL BIOLOGY (LL) >CUSTOM PKG.<
17th Edition
ISBN: 9781323745618
Author: Central Texas
Publisher: PEARSON C
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Chapter 55, Problem 7TYU
Which of the following would be considered an example of bioremediation?
- (A) adding nitrogen-fixing microorganisms to a degraded ecosystem to increase nitrogen availability
- (B) using a bulldozer to regrade a strip mine
- (C) reconfiguring the channel of a river
(D) adding seeds of a chromium-accumulating plant to soil contaminated by chromium
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From the nitrogen cycle diagram below, which of the following is/are a process by which nitrogen can move into the dissolved ocean nitrogen pool? (Select all that apply)
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B- Runoff
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D- Agricultural N fixation
E- Natural N fixation
If the human population were to stabilize tomorrow and never reach 8 billion people, would that solve all our environmental problems? Why or why not? What conditions might get better, and what challenges might remain?
Our review of biogeochemical cycles underscores the importance of primaryproduction to ecosystems and biomes, but what controls rates of primary production?
Chapter 55 Solutions
CAMPBELL BIOLOGY (LL) >CUSTOM PKG.<
Ch. 55.1 - Why is the transfer of energy in an ecosystem...Ch. 55.1 - WHAT IF? You are studying nitrogen cycling on the...Ch. 55.1 - MAKE CONNECTIONS Use the second law of...Ch. 55.2 - Why is only a small portion of the solar energy...Ch. 55.2 - How can ecologists experimentally determine the...Ch. 55.2 - Prob. 3CCCh. 55.2 - MAKE CONNECTIONS Explain how nitrogen and...Ch. 55.3 - If an insect that eats plant seeds containing 100...Ch. 55.3 - Prob. 2CCCh. 55.3 - WHAT IF? Detritivores are consumers that obtain...
Ch. 55.4 - DRAW IT For each of the four biogeochemical...Ch. 55.4 - Why does deforestation of a watershed increase the...Ch. 55.4 - WHAT IF? Why is nutrient availability in a...Ch. 55.5 - Prob. 1CCCh. 55.5 - WHAT IF? In what way is the Kissimmee River...Ch. 55 - Considering the second law of thermodynamics,...Ch. 55 - Prob. 55.2CRCh. 55 - Why would runners hove a lower production...Ch. 55 - If decomposers usually grow faster and decompose...Ch. 55 - In preparing a site for surface mining and later...Ch. 55 - Which of the following organisms is incorrectly...Ch. 55 - Prob. 2TYUCh. 55 - The discipline that applies ecological principles...Ch. 55 - Level 2: Application/Analysis 4. Nitrifying...Ch. 55 - Which of the following has the greatest effect on...Ch. 55 - Prob. 6TYUCh. 55 - Which of the following would be considered an...Ch. 55 - Prob. 8TYUCh. 55 - Level 3: Synthesis/Evaluation 9. DRAW IT (a) Draw...Ch. 55 - Prob. 10TYUCh. 55 - Prob. 11TYUCh. 55 - WRITE ABOUT A THEME: ENERGY AND MATTER...Ch. 55 - Prob. 13TYU
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Why are nitrogen-containing molecules limited in the biosphere? Give two reasons.arrow_forwardNitrogen is fixed in ecosystems in ways stated below. Which one of the statements below is false? A. By cyanobacteria B. By electrical discharges in the atmosphere C. By industrially synthesised fertilizer D. By denitrificationarrow_forwardWhy is an understanding of biogeochemical cycles essential in environmental science?arrow_forward
- What would happen to an ecosystem if all its decomposers and detritus feeders were eliminated or all its producers were eliminated?arrow_forwardWhat is the relationship between an increase in fossil fuel consumption and increased carbon in terrestrial plants? How might this change flora populations? What impact could twenty years at this level of consumption have on flora? What is the relationship between an increase in total carbon concentration (the smokestack) and increased carbon in the ocean surface? How might this change marine life populations? What impact could fifty years at this level of emissions have on marine fauna? On marine flora? In addition to circulating through the carbon cycle, where else might excess carbon be found? In fifty years, where would you be most likely to see excess carbon? Which areas are most highly (and quickly) affected by an increase in carbon emissions (and increase in fossil fuel consumption)? How would these effects manifest themselves? What are the dangers/benefits to these areas?arrow_forwardRefer to Fig. 5.5. and redraw the important transformations of fixed nitrogen in ecosystems. Note the following processes: biological N fixation, non-biological N-fixation, ammonification, nitrification, denitrification. Reference: https://ecampusontario.pressbooks.pub/environmentalscience/chapter/chapter-5-flows-and-cycles-of-nutrients/arrow_forward
- Which statement offers the best explanation of how deforesting hubbard brooks watershed (W2) affected the nitrogen cycle? 1. Denitrification rates increased, resulting in a decrease in the export of ammonium 2. Microbial immobilization rates increased, resulting in a decline in stream nitrogen 3. Mineralization rates increased, causing the export of ammonium to increase 4. plant uptake nitrogen stopped, resulting in an increase in the export of nitratearrow_forwardHow do toxic substances travel through the environment, and where are they most likely to be found? Describe and contrast the processes of bioaccumulation and biomagnification.arrow_forwardWhat are some economic applications that can be generated by very biodiverse ecosystems?arrow_forward
- How can ecologists experimentally determine the factorthat limits primary production in an ecosystem?arrow_forwardWhy does nature favor raising the gross primary productivity while man tends to raise the net primary productivity?arrow_forwardWhy do patterns of global primary production on land show strong latitudinalvariation, whereas primary production in the oceans varies largely with distance from shore?arrow_forward
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