Identify the cycle described.

this nutrient is cycled between living things and the soil. plants absorb this nutrient from the soil 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.

options are: phosphorus cycle, carbon cycle, and nitrogen cycle.