Question

Write short notes on the following:
Phosphorus cycle

Hint:

Understanding the phosphorus cycle helps in ecosystem management, and primary immunity is crucial in the body's first defense against diseases.

Answer 1

Phosphorus Cycle.
The phosphorus cycle is the process by which phosphorus moves through the environment, including the soil, water, and living organisms. Unlike other biogeochemical cycles, the phosphorus cycle does not involve the atmosphere. The main stages are:
1. Weathering of rocks: Phosphorus is released from rocks through weathering.
2. Absorption by plants: Phosphorus is absorbed by plants in the form of phosphate.
3. Consumption by animals: Herbivores consume plants, and carnivores eat herbivores, thus transferring phosphorus.
4. Decomposition: When organisms die, decomposers break down organic matter, returning phosphorus to the soil.
5. Leaching: Phosphorus may be washed into water bodies, where it can contribute to aquatic life.

Conclusion.
The phosphorus cycle is vital for ecosystem productivity.