Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 58, Problem 9TY
Summary Introduction
Introduction: Limiting factors are physical factors which are present in the least amount in the environment and therefore limit growth. The principle given by Liebig’s law of minimum suggests that growth is determined by limiting factors.
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Plant growth is most likely to be limited by the available supply of usable: a. nitrogenb. carbonc. oxygend. phosphorus
Chemical fertilizers:
a. supplement carbon fixation by crops.
b. cause eutrophication.
c. provide additional nitrogen for crops.
d. provide additional phosphorous for crops.
e. Only b. c. and d.
Most of the fresh water in the world is used fora. drinking. b. supporting industry.c. irrigating crops.d. cooking.e. bathing.
Chapter 58 Solutions
Biology
Ch. 58.1 - Prob. 1CCCh. 58.3 - Prob. 1CCCh. 58.3 - Inhibition implies that competition exists between...Ch. 58.4 - Prob. 1CSCh. 58.4 - Prob. 1CCCh. 58.4 - Prob. 1EQCh. 58.4 - Prob. 2EQCh. 58.4 - CoreSKILL What did the researchers conclude about...Ch. 58.5 - Core Skill: Connections In the two food chains...Ch. 58.5 - Prob. 1CC
Ch. 58.5 - Prob. 2CSCh. 58 - Prob. 1TYCh. 58 - Prob. 2TYCh. 58 - Which evidence suggests that more diverse...Ch. 58 - The process of primary succession occurs a. around...Ch. 58 - Prob. 5TYCh. 58 - Prob. 6TYCh. 58 - Prob. 7TYCh. 58 - Prob. 8TYCh. 58 - Prob. 9TYCh. 58 - Prob. 10TYCh. 58 - Prob. 1CQCh. 58 - Prob. 2CQCh. 58 - Core Concept: Systems In the nutrient-poor...Ch. 58 - List some possible ecological disturbances, their...Ch. 58 - Prob. 2COQ
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- fertilizers are necessary if the soil lacks one of the following nutrients: a. calcium, carbon, potassium b. nitrogen phosphorus, potassium c. nitrogen, phosphorus, magnesium d. nitrogen, calcium, magnesium e. phosphorus, potassium, magnesiumarrow_forwardTerrestrial NPP a. generally increases with temperature. b. does not vary with precipitation. c. is high when soils are low in nutrients. d. is high in dry regions.arrow_forwardExplain(in terms of biological or chemical impacts on aquatic ecosystems) why plant nutrients usually are the worst kinds of water pollutants. The term B.O.D. should be part of your answer.arrow_forward
- Biological magnification occurs whena. pollutants increase in concentration in tissues at higher trophic levels.b. the effect of a pollutant is magnified by chemical interactions within organisms.c. an organism is placed under a dissecting scope.d. a pollutant has a greater than expected effect once ingested by an organism.arrow_forwardExplain why you are for or against: (a)raising the price of water while providing lower lifeline rates for the poor consumers, (b)withdrawing government subsidies that provide farmers with water at low cost, and (c)providing government subsidies to farmers for improving irrigation efficiency.arrow_forwardEutrophication in water bodies can lead to the formation of dead zones due to a depletion of a. oxygen. b. carbon. c. nitrogen. d. decomposers. e. phosphorus.arrow_forward
- Of the following benefits, which one is the main potential benefit of water markets? Group of answer choices A. More water is available for lower-income households B. More water is available for agricultural uses C. Water is used for its most highly-valued purposes D.There will be no more water forgeryarrow_forwardOligotrophic lakes have a. low oxygen, and high nutrient availability. b. high oxygen, and high nutrient availability. c. high oxygen, and low nutrient availability. d. low oxygen, and low nutrient availability.arrow_forwardBelow you are provided with two scenarios of how excess nutrients can enter water systems. For each scenario, water must begin in the atmosphere, as a gas. Using a minimum of 3 stages of the water cycle, complete the process to illustrate each of the scenarios. It is recommended to write the steps out chronologically as well. 1. How do fertilizers or pesticides placed on farmland infiltrate the soil and the aquifer, in relation to the water cycle? 2. Heavy rainfall has the ability to move fertilizers and surface pollutants to other areas, such as the Ocean. Diagram this process using a minimum of 3 water cycle stages, beginning in the atmosphere.arrow_forward
- Answer the following: a. What is a nutrient cycle? b. What are the different types of nutrient cycles, and describe each briefly. c. What is the importance of the different nutrient cycles on Earth?arrow_forwardNitrogen is available to terrestrial plants in the form of Select all that apply. Select one or more: a. nitrite ions in the soil b. nitrate ions in the soil c. animal carcasses d. N2 in the atmosphere e. ammonium ions in the soilarrow_forwardNitrogen availability is a limiting factor in crop production. * D. Disagree, because atmospheric nitrogen is about 80% and therefore nitrogen is readily available. A. Agree, because almost 80% of the atmospheric nitrogen (N2) is readily available. C. Agree, because atmospheric nitrogen must first be reduced to ammonia through N-fixation. B. Disagree, because only a small fraction of the atmosphere is composed of nitrogen gas.arrow_forward
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