What is moss made up?

Moss is primarily composed of small, non-vascular plants that belong to the division Bryophyta. These plants have simple structures, including leaf-like structures, stem-like structures, and rhizoids for anchorage, but they lack true roots, stems, and leaves found in higher plants. Mosses reproduce via spores and thrive in moist environments, playing a crucial role in ecosystem functions like soil formation and water retention.