NEET BIOLOGY

Detailed explanation-1: -Instead of roots, threadlike structures called rhizoids (RI zoydz) anchor them where they grow. Most nonvascular plants grow in places that are damp. Water is absorbed and distributed directly through their cell membranes and cell walls. Nonvascular plants also do not have flowers or cones that produce seeds.

Detailed explanation-2: -Seedless nonvascular plants are small, having the gametophyte as the dominant stage of the lifecycle. Without a vascular system and roots, they absorb water and nutrients on all their exposed surfaces. Collectively known as bryophytes, the three main groups include the liverworts, the hornworts, and the mosses.

Detailed explanation-3: -Rhizoids have a variety of functions including water transport and adhesion to surfaces in some mosses and liverworts. A similar gene regulatory network controls the development of rhizoids in moss gametophytes and root hairs on the roots of vascular plant sporophytes.

Detailed explanation-4: -Rhizoids – structures that anchor a plant without transport tissue to a surface.