When fertilizers turn a body of water eutrophic, the resulting depletion of oxygen levels results from... increased photosynthesis of aquatic plants decomposition of dead algae water's inability to dissolve oxygen decreased activity of algae eating organisms
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Step 1: Excess nutrients, such as fertilizers, enter a body of water. Show more…
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Sequence the steps leading to and resulting from the eutrophication of a body of water. First step Last step Answer Bank sewage runoff loss of many species dying off of plants and algae depletion of dissolved oxygen excessive proliferation of plants and algae microbial breakdown of plants and algae
Marlyn J.
Eutrophication is characterized by extreme algal growth (bloom) caused by the rapid input of fertilizers. When the algae on the surface of the water bloom, they prevent sunlight from reaching other aquatic plants found below causing them to die. These dead plants are in turn decomposed by bacteria, a process that requires oxygen and produces carbon dioxide. The decrease of oxygen eventually leads to the death of all other aquatic organisms. Which statement is NOT applicable to eutrophication? Select one: a. Provides an example of top-down food web dynamics. b. Aquatic animals die because they are unable to extract the energy from glucose. c. The lack of light prevents plants from producing glucose d. The addition of fertilizers reduces intraspecific competition between algae. e. Bacteria are heterotrophs.
Suman K.
Eutrophication is a. caused by an overabundance of nitrogen, which leads to a decrease in bacteria populations. b. caused by an overabundance of nutrients, which leads to an increase in algal populations. c. usually caused by oil spills. d. normally seen in dry, hot regions of the world. e. accelerated by habitat loss.
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