EVERYDAY SCIENCE

Detailed explanation-1: -Mosses and their relatives are seedless nonvascular plants, they are called bryophytes. They lack a vascular system (plumbing system) to move water and nutrients throughout the plant. For this reason, they grow close to the ground to absorb water and nutrients.

Detailed explanation-2: -Non-vascular plants like algae and bryophytes are restricted to moist habitats because they lack a proper vascular system that is the presence of xylem and phloem in them so they live in close contact with water to get the supply of water to prevent desiccation.

Detailed explanation-3: -Nonvascular plants survive only in moist habitats. They do not have leaves, roots, or stems, they are low-growing plants, and they reproduce by forming spores.

Detailed explanation-4: -In all bryophytes, the primary plants are the haploid gametophytes, with the only diploid portion being the attached sporophyte, consisting of a stalk and sporangium. Because these plants lack lignified water-conducting tissues, they cannot become as tall as most vascular plants.

Detailed explanation-5: -Characteristics of Nonvascular Plants Instead of roots, they have hair-like rhizoids to anchor them to the ground and to absorb water and minerals (see Figure below). Bryophytes occupy niches in moist habitats, but, as they lack vascular tissue, they are not very efficient at absorbing water.