AP BIOLOGY

Detailed explanation-1: -Informally known as bryophytes, nonvascular plants lack specialized vascular tissue (xylem and phloem) for internal water and food conduction and support. They also do not possess true roots, stems, or leaves.

Detailed explanation-2: -Mosses, liverworts and hornworts are collectively called “bryophytes.” Bryophytes are nonvascular plants: They do not have special tissues-tissues that botanists call “xylem” and “phloem”-to transport fluids and nutrients internally. Additionally, bryophytes do not produce flowers and seeds.

Detailed explanation-3: -Bryophytes is the informal group name for mosses, liverworts and hornworts. They are non-vascular plants, which means they have no roots or vascular tissue, but instead absorb water and nutrients from the air through their surface (e.g., their leaves).

Detailed explanation-4: -Both bryophytes and tracheophytes have developed conducting tissues consisting of cells specialized for the distribution of food and water throughout the plant body.

Detailed explanation-5: -Most bryophytes are small. They not only lack vascular tissues; they also lack true leaves, seeds, and flowers. Instead of roots, they have hair-like rhizoids to anchor them to the ground and to absorb water and minerals (see Figure below).