Which statement is true about wood decay fungi?

Wood decay fungi play a significant role in the decomposition of wood materials, breaking down cellulose and lignin, which leads to the deterioration of wood structures. This biological activity is essential for nutrient cycling within ecosystems.

Understanding the biological and environmental needs of wood decay fungi illustrates why they can only thrive in specific conditions. They require moisture to initiate and sustain their growth, which allows them to effectively decompose wood. The presence of water is critical for their metabolic processes and the enzymatic reactions necessary for breaking down wood fibers.

The choice that asserts these fungi can decompose wood accurately reflects their function in nature. The other options are inconsistent with the biological requirements of these fungi, which cannot thrive in dry conditions and certainly do not grow on metal surfaces, as they primarily target organic materials rich in cellulose.