GENERAL KNOWLEDGE

Detailed explanation-1: -Mosses are small bryophytes since they are nonvascular plants with just a few water conducting strands in the central stem. Because of their small size, they must rely on diffusion to move water in and out of the plants and to transfer sperm.

Detailed explanation-2: -Non-vascular plants such as liverworts and mosses move water and nutrients by osmosis and diffusion. Because non-vascular plants are small (typically one cell thick) they do not need conducting tissues and a complex system to move water; whereas vascular plants are large, and need a more complex system.

Detailed explanation-3: -When solute movement is restricted relative to the movement of water (i.e., across semipermeable cell membranes) water moves according to its chemical potential (i.e., the energy state of water) by osmosis-the diffusion of water.