Which of the following best describes the significance of decomposers in an ecosystem?

Decomposers play a critical role in ecosystems primarily by recycling nutrients back into the soil. They break down dead organic matter, such as dead plants and animals, as well as waste products. This decomposition process results in the release of essential nutrients, like nitrogen and phosphorus, back into the soil, making them available for plants to assimilate. This nutrient recycling is essential for maintaining soil health and fertility, thereby supporting plant growth and, consequently, the entire food web.

In addition to nutrient recycling, the activity of decomposers helps prevent the accumulation of organic waste in the environment, ensuring that ecosystems function efficiently. By aiding in the decomposition of organic materials, they promote a balanced ecosystem where energy flows smoothly through various trophic levels, from producers to consumers and back to the soil through decomposers. This process is fundamental to the sustainability of ecosystems, highlighting the indispensable role of decomposers in the natural cycle of life.