Which nonvascular plant is commonly found in moist environments?

Moss is a type of nonvascular plant that thrives in moist environments, making it the correct answer in this context. Nonvascular plants, such as mosses, lack the vascular tissue (xylem and phloem) that vascular plants use to transport water and nutrients. As a result, they typically rely on diffusion and osmosis to move substances, which is why they prefer damp habitats where water is readily available.

Mosses are often found in shaded, moist areas like forests, wetlands, and near bodies of water, and they play a vital role in the ecosystem by retaining moisture and preventing soil erosion. Their structure, including small leaves, allows them to absorb water directly from their surroundings.

The other options presented do not fit the criteria of being a nonvascular plant commonly found in moist environments. Fungi, while they thrive in some moist conditions, are not categorized as plants. Algae can be found in various environments, including water and moist surfaces, but they are primarily aquatic and usually understood more as protists rather than plants. Cacti, being vascular plants, are adapted to dry habitats and do not thrive in moist environments. Thus, moss stands out as the definitive example of a nonvascular plant associated with moist conditions.