How do decomposers obtain their energy in an ecosystem?

Decomposers play a crucial role in ecosystems by breaking down organic matter from dead plants and animals as well as waste products. This process releases energy stored in the tissues of these organisms, allowing decomposers to convert this matter into simpler substances. By doing this, they recycle nutrients back into the soil, which can be taken up by plants, thus supporting the overall health of the ecosystem.

Decomposers, such as fungi and bacteria, do not rely on live organisms for their energy. They thrive on materials that are no longer living, ensuring the continual cycle of life and nutrient availability within their environment. This ability to decompose organic matter is essential for maintaining ecological balance, as it prevents the accumulation of dead matter and promotes the renewal of resources.

The other options reflect different ecological interactions that do not apply to decomposers specifically. For instance, consuming living plants relates to herbivores, photosynthesis is a process used by plants to generate energy, and predation involves hunting live animals.