What do rhizomorphs do?

Rhizomorphs are specialized structures produced by some fungi, particularly wood-decaying fungi. They are often described as "roots" of the fungus and serve the purpose of transporting moisture and nutrients from one location to another. In the context of this question, rhizomorphs specifically carry moisture from damp wood to areas of dry wood, which helps the fungus to thrive in environments that may not have direct access to moisture.

This process is crucial for the survival and spread of the fungal organism, as moisture is essential for fungal growth and reproduction. As rhizomorphs facilitate the movement of water through the substrate, they enable the fungus to colonize new areas and contribute to the decomposition process in forest ecosystems.

The other options relate to different functions. Preventing wood from decaying is not a function of rhizomorphs; rather, they contribute to decay through the decomposition of wood. Enhancing the growth of plants is not applicable as rhizomorphs focus on supporting the fungus itself. Storing nutrients for the fungus is also not a function primarily associated with rhizomorphs; instead, they primarily function in resource transportation.