Gasping for Oxygen Explain how each of the following contribute to dissolved oxygen decline in aquatic ecosystems: Rising water temperatures slowing streams organic pollutants/eutrophication
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- In Eutrophication, excess nutrients can cause algal blooms. However, what happens when the algae eventually die? Bacterial – Increase or decrease Oxygen – Increase or decreaseWhich of the following water sources will most likely have the highest amount of dissolved oxygen? O a wetland on a sunny, hot day a warm pond after an algal bloom O a cold, fast-moving mountain stream O a shallow pond with high turbidityEutrophication excessive richness of nutrients in a lake or other body of water, frequently due to runoff from the land, which causes a dense growth of plant life and death of animal life from lack of oxygen. True or false?
- The Cycling of Essential Chemicals There are many elements that are necessary for maintaining life that must be cycled through the ecosystem. During this module, we have discussed the cycling of carbon, and nitrogen. For each of the items, determine if it is relevant to the element or its cycle. Categories: Carbon, Nitrogen, Carbon and Nitrogen Answers: Involved in cellular respiration If this element is in excess in the cycle, it can cause eutrophication Involved in cellular respiration Main reservoir is in the atmosphere If this element is in excess in the cycle, it can cause eutrophication The burning of fissil fuels increase its levels in the environment Involved in photosynthesis Converted by bacteria during its cycleFigure 46.17 Which of the following statements about the nitrogen cycle is false? Ammonification converts organic nitrogenous matter from living organisms into ammonium (NH4+). Denitrification by bacteria converts nitrates (NO3-) to nitrogen gas (N2). Nitrification by bacteria converts nitrates (NO3 ) to nitrites (NO2-). Nitrogen fixing bacteria convert nitrogen gas (N2) into organic compounds.Figure 22.19 Which of the following statements about the nitrogen cycle is false? Nitrogen fixing bacteria exist on the root nodules of legumes and in the soil. Denitrifying bacteria convert nitrates (NO3 ) into nitrogen gas (N2). Ammonification is the process by which ammonium ion (NH4+) is released from decomposing organic compounds. Nitrification is the process by which nitrites (NO2-) are converted to ammonium ion (NH4+).
- Which of the following cycles involves the processes of cellular respiration and photosynthesis to move matter? Water cycle Carbon cycle Nitrogen cycle Phosphorous cycleBiological Oxygen Demand (BOD) is a measure of? How much oxygen needed is needed for growth of aerobic bacteria The extent to which rivers or lakes are polluted with inorganic industrial waste compounds How much oxygen is needed for survival of aerobic bacteria The extent to which rivers or lakes are polluted with organic waste compoundsHow does the processes of cellular respiration impact the global carbon cycle? Group of answer choices It returns CO2 to the atmosphere that is breathed out by animals. It leads to the conversion of Ammonium into Nitrate. It removes CO2 from the atmosphere. It adds CO2 to the inaccessible reservoir.
- The relative humidity in pore spaces is high in soils in tropical areas but low in desert soils. TRUE ORFALSECarbon can be sequestered in the ocean in a variety of forms. Discuss the different forms, their biological sources, and how global warming will influence themuity.com .core.learn.edgenuity.com/Player/ Cycles of Matter Instruction Active Labeling the Water Cycle Try it Place each step of the water cycle in its correct location. Evaporation Runoff Precipitation Groundwater Transpiration Condensation D Intro e to search
