EVERYDAY SCIENCE

Detailed explanation-1: -Vascular system is absent in non-vascular plants. A few algae, liverworts, hornworts and mosses are nonvascular plants. Reproduction in such plants is through spore production in contrast to seeds, as a result they do not bear wood, flowers or fruits.

Detailed explanation-2: -Vascular plants are also known as tracheophytes. They include pteridophytes, gymnosperms and angiosperms. Non-vascular plants lack a specialised vascular system for transporting water and nutrients. They may contain simple structures that may specialise to perform transportation, e.g. algae and bryophytes.

Detailed explanation-3: -Nonvascular Plants. Nonvascular plants (often referred to collectively as the bryophytes) include three groups: the mosses (Bryophyta), approximately 15, 000 species; liverworts (Hepaticophyta), approximately 7500 species; and hornworts (Anthocerophyta), approximately 250 species (Table 1).

Detailed explanation-4: -Non-vascular plants, or bryophytes, are plants that lack a vascular tissue system. They have no flowers, leaves, roots, or stems and cycle between sexual and asexual reproductive phases. The primary divisions of bryophytes include Bryophyta (mosses), Hapatophyta (liverworts), and Anthocerotophyta (hornworts).

Detailed explanation-5: -Nonvascular plants include liverworts, hornworts, and mosses. They lack roots, stems, and leaves. Nonvascular plants are low-growing, reproduce with spores, and need a moist habitat.