DENDROLOGY

Detailed explanation-1: -As the name describes, the non-vascular plants do not have vascular tissues (xylem and phloem). The conduction or transportation of food and water occurs through vascular tissues, showing that non-vascular plants are smaller than vascular plants, which require transporting of products throughout the plant body.

Detailed explanation-2: -Non-vascular plants are tender and shorter than vascular plants due to the unavailability of water-conducting tissue. The prominent life cycle in vascular plants is the sporophyte, where they produce spores that are diploid.

Detailed explanation-3: -Nonvascular plants are very small because their lack of a vascular system means they do not have the mechanics required for transporting food and water far distances. Another characteristic of nonvascular plants that sets them apart from vascular plants is that they lack roots.