What are the advantages of seeds over spores?

The advantage of semen over spores is that the seeds contain much more nutrients and are better protected than spores.

Seeds have several advantages over spores. The first is that inside the seeds there is already a fertilized primordium, from which a new plant then sprouts. In spores, fertilization occurs only after they disappear into the ground. This slows down and complicates the spread of spore plants. The second advantage is the presence of endosperm in the seeds, that is, nutrients, which gives the seeds the opportunity to be stored for a long time and survive inappropriate times. Spores also lack endosperm.