Biology: Life on Earth (11th Edition)
11th Edition
ISBN: 9780134168296
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Chapter 29, Problem 2MC
Summary Introduction
Introduction:
Nutrient cycles are sometimes also called biogeochemical cycles. A nutrient cycle explains the pathway of transfer of nutrients from their source-called reservoir to various components of the ecosystem. This ensures that the nutrients are repeatedly used. A major amount of nutrients is stored in abiotic reservoirs. The carbon cycle is an example of a nutrient cycle.
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Chapter 29 Solutions
Biology: Life on Earth (11th Edition)
Ch. 29 -
1. Which trophic level(s) must be present to...Ch. 29 - Prob. 2MCCh. 29 - Denitrifying bacteria convert ammonia to nitrate...Ch. 29 -
4. Net primary production per unit area is likely...Ch. 29 - The effect of CO2 emissions from burning fossil...Ch. 29 -
1. Nearly all life gets its energy from _______...Ch. 29 -
2. Photosynthetic organisms are called either...Ch. 29 -
3. Feeding levels within ecosystems are also...Ch. 29 - In general, only about ______ percent of the...Ch. 29 - Prob. 5FTB
Ch. 29 -
6. During the nitrogen cycle, nitrogen gas is...Ch. 29 - Prob. 7FTBCh. 29 - Prob. 1RQCh. 29 -
2. What is a producer? What trophic level does it...Ch. 29 - 3. Define net primary production. Would you...Ch. 29 - Name the first three trophic levels. Among the...Ch. 29 - How do food chains and food webs differ? Which is...Ch. 29 - Define detritivore and decomposer and explain...Ch. 29 -
7. Trace the movement of carbon from one of its...Ch. 29 - Prob. 8RQCh. 29 - Trace a pathway of a phosphorus molecule from a...Ch. 29 -
1. Humans are omnivores who can feed on several...Ch. 29 - Discuss the contribution of human population...
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- We learned an ironic twist in the film called "The Other Inconvenient Truth." It was that a. agriculture creates more pollution than other sources, but we have to increase farming for the growing population b. that nitrogen in the soil is significant pollution, but if we don't use these fertilizers we will not have enough food c. That methane is produced by animals and by growing rice. So becoming vegetarian won't clear methane from the atmosphere. d. agriculture uses 70% of fresh water mined , causing a salt water pollution tooarrow_forwardWhich of the following approaches would be the most effective way to reduce greenhouse carbon dioxide? a. Increase waste deposition into the deep ocean. b. Plant more environmentally-suitable plants. c. Increase use of fuel sources that do not produce carbon dioxide as a by-product. d. Decrease livestock agriculture.arrow_forwardWhich of the following natural forces is responsible for the release of carbon dioxide and other atmospheric gases? a. the Milankovitch cycles b. volcanoes c. solar intensity d. burning of fossil fuelsarrow_forward
- Amajor perturbation of the carbon cycle by human activity is associated with:a.release of carbon from carbonate rocks.b.release of carbon from fossil fuel deposits.c.removal of carbon from the atmosphere in the industrial production offertilizers.d.accelerated removal of carbon from the atmosphere by forests.e.respiratory production of CO2 by the large human population.arrow_forwardThere is a manufacturing plant that emits 10 tonnes of carbon annually. If this manufacturer were to reduce their annual carbon emissions by 1 tonne it would cost (marginal cost) them $5 dollars, by 2 tonnes it would cost them $10, by 3 tonnes it would cost them $15 and 4 tonnes would cost them $20. If there is a carbon tax of $10 per tonne of carbon, how much would the manufacturer likely reduce their carbon emissions by? a. 1 tonne b. 2 tonnes c. 3 tonnes d. 4 tonnesarrow_forwardConsider yourself as an owner of a factory using fossil fuel as energy source. Now as an environmental expert, you want to make some decisions or rules in your company to reduce the pollution and also to reduce the global warming. What are the steps that you will take? Explain it in detail.arrow_forward
- Which of the following is false concerning the carbon cycle? Decomposers take organic carbon and turn it into inorganic nutrients (phosphorus, sulfur, nitrogen, etc.) Consumers take in organic carbon (food) and convert the waste into carbon dioxide. C) Producers take carbon dioxide and turn it into organic carbon (food). Plants take organic carbon (food) and convert the waste into carbon dioxide.arrow_forwardWhich of the following is/are considered a greenhouse gas? a. CO2 c. N2O b. CH4 d. all of thesearrow_forwardFossil fuels are a sink for carbon located in the a. hydrosphere. b. lithosphere.. c. biosphere. d. atmosphere.arrow_forward
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