How does the reproduction of seedless plants differ from that seed of seed plant

This is what they are looking for in the responds.

(Sample)

Seedless plants produce spores. Spores can develop into an adult without fusing with another cell. Seed plants produce seeds. Seeds are formed when the female reproductive structure matures; this occurs after fertilization.

Seedless plants are those which do not reproduce by producing seeds like seed-bearing plants. Rather, they produce a larger number of small, single-celled spores. Seedless vascular plants are characterized by the presence of true roots, stems, and leaves, though sometimes these parts cannot be clearly distinguished from each other.