Identify the cycle described. This nutrient is cycled between living things and the soil. Plants absorb this nutrient from the s
oil and turn it into organic compounds through assimilation. Animals eats the plants and pass the nutrient through the food chain from one organism to another. When the animal dies, it decomposes and returns the nutrient back to the soil. The nutrient can also enter the soil through weathering and erosion. Plants take in this nutrient when they perform photosynthesis. An animal eats the plant and uses its carbohydrates for energy. The animal releases the nutrient back into the atmosphere during respiration. Bacteria in the soil converts this nutrient into a usable form. Plant take up the usable nutrient through the soil and assimilate it into proteins, making it part of the plant. An animal eats the plants, and the nutrient becomes part of the animal. When the animal dies, it decomposes, returning the nutrient back to the soil.
I'd say it is phosphorus or phosphate. The easiest way to identify the answer is trough these frases:
Plants absorb this nutrient from the soil and turn it into organic compounds through assimilation.
Plants take up the usable nutrient through the soil and assimilate it into proteins, making it part of the plant.
During assimilation, plants provide phofphorous (and other nutrients) to the cells and tissues - plants absorb this nutrient from the soil and turn it into organic compounds through assimilation.
Plants also used phosphorus in processes such as transpiration and photosynthesis wich contributes to the fact that plants take up the usable nutrient through the soil and assimilate it into proteins, making it part of the plant.
The phosphorus cycle is the way that compounds of the element phosphorus, an essential nutrient, are recycled in the environment. Plants absorb phosphorus compounds from the soil, and decaying organic matter, including both plant matter and animal droppings, returns it to the soil. Phosphorus is a vital part of ATP, the energy currency of all cells, and is vital to all forms of life.
