Here's how it works:

* Diffusion: Water molecules move from areas of high concentration (like the surrounding soil) to areas of low concentration (like the plant's cells). This movement is passive and doesn't require energy.

* Osmosis: A special type of diffusion where water moves across a semi-permeable membrane (like the plant's cell wall) from an area of high water potential to an area of low water potential. This is driven by the difference in solute concentration between the inside and outside of the plant cells.

Since nonvascular plants lack a specialized vascular system (like xylem and phloem), they rely on these passive processes to transport water throughout their bodies. This limits their size and restricts them to moist environments.