Nutrient cycling is the movement and exchange of essential nutrients between living organisms and their environment. It involves the following key steps:
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Absorption: Nutrients are absorbed by plants from the soil through their roots.
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Consumption: Herbivores consume these plants to obtain nutrients, and carnivores consume herbivores.
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Decomposition: When living organisms die, decomposers like bacteria and fungi break down their organic matter into simpler compounds, releasing nutrients back into the soil.
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Mineralization: Through decomposition, organic matter is converted into inorganic nutrients like nitrogen, phosphorus, and potassium, which can be taken up by plants again.
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Leaching: Nutrients can also be washed away from the soil through water runoff, ending up in bodies of water where they can be utilized by aquatic organisms.
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Assimilation: Once nutrients are absorbed by organisms, they are incorporated into their tissues and become available for consumption by other organisms, continuing the cycle.
Overall, nutrient cycling is essential for maintaining the balance of nutrients in ecosystems and supporting the growth and development of living organisms.