Step 1: Plants absorb phosphates in the soil and turn them into organic compounds through assimilation
Animals eat these plants and pass the phosphorus through the food chain.
An animal dies and decays, returning the phosphorus to the soil, and the cycle repeats.

eukarya because is is like alche and b is bacteria and d is animals

explanation:

answer : haversian

[explanation: -(compact bone is organized as parallel columns, known as haversian systems, which run lengthwise down the axis of long bones. these columns are composed of lamellae, concentric rings of bone, surrounding a central channel, or haversian canal, that contains the nerves, blood vessels, and lymphatic system of the bone)]