Which of the following statements are true about the phosphorus cycle? Select all that apply: Phosphorus is a key component of DNA and RNA Weathering of rocks decreases phosphorus availability over long timescales Organisms obtain phosphorus primarily through direct capture from atmospheric gases Most phosphorus ends up in the ocean after being used in terrestrial ecosystems Humans synthesize phosphorus fertilizer using the Haber-Bosch processing
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Phosphorus is a key component of DNA and RNA: This statement is true. Phosphorus is an essential element in the formation of nucleic acids, which are the building blocks of DNA and RNA. Show more…
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38) Which one of the following statements about the phosphorus cycle is false? A) Consumers obtain phosphorus in organic form from plants. B) Phosphorus has its main abiotic reservoir in water. C) Plants absorb dissolved phosphorus ions in the soil. D) Phosphorus that drains from soils into the sea becomes part of new rock and will not cycle back into living organisms until geologic processes lift the rock up and expose it to weathering. E) Phosphates are a major component of sewage.
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39) Which of the following statements about the phosphorus cycle is true? A) Phosphorus has its main abiotic reservoir in water. B) Plants release dissolved phosphorus ions in the soil. C) Phosphorus that drains from soils into the sea is ingested by living organisms. D) Guano can be used by farmers to add phosphorus to the soil.
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Which of the following statements are true about the nitrogen cycle? Select all that are true. This cycle's largest reservoir is the atmosphere. Nitrification is a major flux in this cycle. Photosynthesis is a major flux in this cycle. Transpiration is a major flux in this cycle. The weathering of rock is a major flux in this cycle. This cycle is significantly affected by the extraction of fossil fuels. This cycle is affected by the release of detergents in treated wastewater. This cycle's largest reservoir is ocean water.
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