CAMPBELL BIOLOGY CUSTOM W/MASTERING
5th Edition
ISBN: 9781323764534
Author: Reece
Publisher: PEARSON C
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Chapter 55.4, Problem 2CC
Why does deforestation of a watershed increase the concentration of nitrates in streams draining the watershed?
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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 nitrate
Chapter 55 Solutions
CAMPBELL BIOLOGY CUSTOM W/MASTERING
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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- Where does your drinking water come from? An aquifer or an aboveground reservoir? What area is included within your watershed? Visit the Science in Your Watershed site at http://water.usgs.gov/wsc to find out.arrow_forwardONE OF THE BIGGEST IMPACTS ON THE WATER CYCLE BY GLOBAL BY GLOBAL WARMING ISarrow_forwardWhat effect does pollution have on farmlands?arrow_forward
- Pollution is caused mainly through anthropogenic activities. List the contribution you and your community play in making drinking water unwholesomearrow_forwardWhy would nitrogen in the runoff increase so drastically with deforestation?arrow_forwardDeserts and semidesert scrub cover about the same amount of surface area as tropical rain forests but contribute less than 1% of Earth’s primary production, while rain forests contribute 22%. Explain this difference.arrow_forward
- Net primary production per unit area is likely to be highest in which of the following ecosystems?a. grasslandsb. desertsc. temperate deciduous forestsd. tropical rain forestsarrow_forwardYou are a commercial developer, and you were asked to develop a golf course on what is presently forested land next to a reservoir used for city water. Describe the impacts this development might have on water quality in the reservoir. (HINT: think of pollution from clearing the land as well as growing grass for the golf course)arrow_forwardEutrophic lakes are characterized has having very high nitrogen content. True Falsearrow_forward
- Some of the organic material manufactured in estuarine communitiesis exported to other ecosystems. What type of ecosystems receive thismaterial? How is this material transported?arrow_forwardThe destruction of salt marshes will directly harm each organism exceptarrow_forwardTo generate biogas the required biomass resources must be on wet form, else biogas will not produce. How do you disagree or agree with this statement? Justify your answerarrow_forward
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