Campbell Biology (10th Edition)
10th Edition
ISBN: 9780321775658
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Textbook Question
Chapter 55, Problem 55.4CR
If decomposers usually grow faster and decompose material more quickly in warmer ecosystems why is decomposition in hot deserts relatively slow?
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Chapter 55 Solutions
Campbell Biology (10th Edition)
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 - 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 - Prob. 3CCCh. 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 - Prob. 2CCCh. 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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- Decomposers are associated with which class of food web? a. grazing b. detrital c. inverted d. aquaticarrow_forwardFigure 20.12 Which of the following statements about the nitrogen cycle is false? a. Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4+) . b. Denitrification by bacteria converts nitrates (NO3) to nitrogen gas (N2) . c. Nitrification by bacteria converts nitrates (NO3) to nitrites (NO2) . d. Nitrogen fixing bacteria convert nitrogen gas (N2) into organic compounds.arrow_forwardWhere in the energy and trophic schemes do decomposers enter?arrow_forward
- Why mining causes the pollution?arrow_forwardImagine you are testing water samples from a local pond for pollutants. Your lab instructor sees the results of your dissolved oxygen test and remarks that your water sample has the same dissolved oxygen level as water found near the seafloor of a dead zone. What is the dissolved oxygen level of this water sample? 650-700 ppm 350-360 ppm 80-90 ppm 7-9 ppm 2-3 ppmarrow_forwardWhich fraction of phosphorus is available for photosynthetic organisms to directly uptake and use? Organic phosphorus in detritus Absorbed phosphorus in clay Phosphorus in minerals in rocks Soluble phosphorus in waterarrow_forward
- Carbon can be sequestered in the ocean in a variety of forms. Discuss the different forms, their biological sources, and how global warming will influence themarrow_forwardDead organic matter commonly decomposes in a pattern that follows a negative exponential curve. Scientists wanted to compare the decomposition rates of leaves from cherry trees and maple trees. The scientists placed bags of leaves from each type of tree into a stream and retrieved the bags over time. The scientists repeated the experiment three times. The scientists calculated and graphed the mean amount of litter remaining of each leaf type at all time points. When plants decompose, the dead plant matter first leaches substances such as salts, sugars, and amino acids. After this leaching, one compound left behind is lignin. Lignin gives leaves their toughness and resists decomposition. Leaf mass remaining (grams) 1004 75+ 50- 25- O 25 50 75 Time (days) Maple Cherry 100 Select the statement the data support about the rate of leaf decomposition and the amount of lignin present in leaves. O Since the maple leaves decompose the slowest, they have a greater amount of lignin. O Since the…arrow_forwardExplain why seasonal stratification of temperature and oxygen takes place in deep ponds and lakes.arrow_forward
- Compare the nitrogen and phosphorous cycles. How are they similar? How are the different? How does the breakdown of organic matter impact both cycles? How would the recycling of nutrients be different in a cold, dry desert compared to a warm, wet rainforest?arrow_forwardTo protect oligotrophic lakes from eutrophication, it is important toarrow_forwardSome of the organic material manufactured in estuarine communitiesis exported to other ecosystems. What type of ecosystems receive thismaterial? How is this material transported?arrow_forward
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