Which cycle focuses on the transformation and utilization of nitrogen in ecosystems?

The chosen answer highlights the nitrogen cycle, which is specifically concerned with the movement and transformation of nitrogen through various forms and reservoirs in the environment. In ecosystems, nitrogen is a crucial element for the production of amino acids, proteins, and nucleic acids. The nitrogen cycle encompasses processes such as nitrogen fixation, where atmospheric nitrogen is converted into forms usable by plants, followed by nitrification, assimilation, ammonification, and denitrification, leading to the recycling and continuous availability of nitrogen.

Throughout this cycle, nitrogen is transformed from its inert gaseous form into reactive forms, allowing it to enter food webs and sustain life. Understanding the nitrogen cycle is key to grasping how nutrients flow through ecosystems and influence biodiversity, plant growth, and overall ecological health. Without this cycle, ecosystems would lack a critical nutrient necessary for life, illustrating the importance of nitrogen in ecological processes.