BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 57, Problem 5U
Summary Introduction
Introduction:
The oligotrophic lake is a lake having low primary productivity because of low organic nutrients. Due to low nutrient, the growth of algae or other organism is low. The oligotrophic lake contains very clear and flowing water (lotic water ecosystem). The dissolved oxygen content in oligotrophic lake is high from surface to bottom.
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Allof the following statements concerning oligotrophic lakes are true, except:a.warm temperatures.b.low nutrients.c.high oxygen content.d.deep and clear waters.e.low biological productivity.
Eutrophication in water bodies can lead to the formation of dead zones due to a depletion of
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b.
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c.
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Most of the fresh water in the world is used fora. drinking. b. supporting industry.c. irrigating crops.d. cooking.e. bathing.
Chapter 57 Solutions
BIOLOGY
Ch. 57.1 - Prob. 1LOCh. 57.1 - Prob. 2LOCh. 57.1 - Prob. 3LOCh. 57.2 - Prob. 1LOCh. 57.2 - Explain the primary factors that determine which...Ch. 57.3 - Prob. 1LOCh. 57.3 - Prob. 2LOCh. 57.3 - Prob. 3LOCh. 57.4 - Prob. 1LOCh. 57.4 - Prob. 2LO
Ch. 57.5 - Prob. 1LOCh. 57.5 - Differentiate between point-source pollution and...Ch. 57.5 - Prob. 3LOCh. 57.5 - Prob. 4LOCh. 57.6 - Prob. 1LOCh. 57.6 - Prob. 2LOCh. 57 - Prob. 1DACh. 57 - Prob. 2DACh. 57 - Prob. 1IQCh. 57 - Prob. 2IQCh. 57 - 1. The Coriolis effect a. drives the rotation of...Ch. 57 - What two factors are most important in biome...Ch. 57 - In a rain shadow, air is cooled as it rises and...Ch. 57 - Thermal stratification in a lake a. is not...Ch. 57 - Prob. 5UCh. 57 - Deep-sea hydrothermal vent communities a. get...Ch. 57 - Prob. 7UCh. 57 - Which of the following is a point source of...Ch. 57 - If the Earth were not tilted on its axis of...Ch. 57 - Prob. 2ACh. 57 - If a pesticide is harmless at low concentrations...Ch. 57 - Prob. 4ACh. 57 - Discuss how figure 58.1 explains the pattern...Ch. 57 - Prob. 2SCh. 57 - If the world has experienced global warming many...Ch. 57 - What can be done to prevent new diseases from...
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- Lake turnover in temperate locations results in: Group of answer choices A. freezing of water from the bottom of the lake up to the top. B. loss of organisms living in a lake. C. stagnation of water and diversity of anaerobic organisms in the lake. D. decrease of oxygen and nutrients throughout the lake. E. mixing of oxygen and nutrients throughout the lake.arrow_forwardYoung lakes are often clear and with little plant life. Such lakes arecalleda. oligotrophic.b. eutrophic.c. lotic.d. lentic.e. pelagic.arrow_forwardFlux of anthropogenic Phosphorous from terrestrial to aquatic ecosystems can have negative effects, such as A. Eutrophication B. Ocean acidification C. Acid rain D. Both A and C E. A, B and Carrow_forward
- Thelargest reservoir of phosphorus in most ecosystems is phosphorus:a. inthe atmosphere.b.dissolved in water.c. inrocks and sediments.d.bound in animal tissues.e.bound in plant tissues.arrow_forwardThe process whereby oxygen is depleted by the growth of microorganisms due to excess nutrients in aquatic systems is called _________. a. dead zoning b. eutrophication c. retrophication d. depletionarrow_forwardWhy are drinking water supplies still a major concern for many countries?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 how streams can cleanse themselves ofoxygen-demanding wastes and how these cleansing processes can be overwhelmed. What is wastewater? Describe the state of stream pollution inmore-developed and less-developed countries.Give two reasons why lakes and reservoirs cannotcleanse themselves of pollutants very well. Define and distinguish between eutrophication and cultural eutrophication. List three ways to prevent orreduce cultural eutrophication. What are the majorsources of groundwater contamination in the UnitedStates? Explain why groundwater cannot cleanseitself very well. List three ways to prevent or cleanup groundwater contamination. List some ways topurify drinking water. Describe the purification ofdrinking water in more-developed and less-developedcountries. Describe environmental problems causedby the widespread use of bottled water. How are lawsused to protect drinking water in the United States?List three ways to strengthen the U.S. Safe DrinkingWater Act. Describe how…arrow_forwardLakes and ponds that exhibit high levels of eutrophication typically are affected by too much A. Dissolved oxygen B. Nitrogen C. Carbon dioxide D. Sulfurarrow_forward
- Below 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_forwardEutrophication isa. caused by an overabundance of nitrogen, which leads to an increasein bacteria populations.b. caused by an overabundance of nutrients, which leads to an increasein algal populations.c. the normal breakdown of algal plants following a pollution event.d. normally seen in dry, hot regions of the world.e. none of the above.arrow_forwardExplain how streams can cleanse themselves andhow these cleansing processes can be overwhelmed.What is wastewater? Describe the state of streampollution in more- and less-developed countries.Give two reasons why lakes cannot cleanse themselves as readily as streams can. Distinguish betweeneutrophication and cultural eutrophication. Listways to prevent or reduce cultural eutrophication.Explain why groundwater cannot cleanse itself verywell. What are the major sources of groundwatercontamination in the United States? List ways to prevent or clean up groundwater contamination. Listsome ways to purify drinking water. Describe the environmental problems caused by the widespread useof bottled water.arrow_forward
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