OBJECTIVE FORESTRY

Detailed explanation-1: -1. They’re ancient plants. Mosses are non-flowering plants which produce spores and have stems and leaves, but don’t have true roots. Mosses, and their cousins liverworts and hornworts, are classified as Bryophyta (bryophytes) in the plant kingdom.

Detailed explanation-2: -Bryophytes are an informal division that consists of 3 groups of non-vascular plants, namely mosses, liverworts, and hornworts. Prominent bryophytes characteristics are the absence of true roots stems and leaves. Furthermore, rhizoids perform the function of roots, essentially anchoring the plants into the surface.

Detailed explanation-3: -Bryophytes are a group of land plants, sometimes treated as a taxonomic division, that contains three groups of non-vascular land plants (embryophytes): the liverworts, hornworts and mosses. In the strict sense, Bryophyta consists of the mosses only.

Detailed explanation-4: -Option 3 is correct, i.e. Moss. Bryophytes are small, non-vascular plants, such as mosses, liverworts, and hornworts. They play a vital role in regulating ecosystems because they provide an important buffer system for other plants, which live alongside and benefit from the water and nutrients that bryophytes collect.