Here's the breakdown:
* Dandelion seeds: These are contained within the familiar white, fluffy "puffball" structure. Each seed is attached to a parachute-like structure called a pappus, which helps it disperse through the wind.
* Spores: These are single-celled reproductive units produced by organisms like ferns, mosses, and fungi. They are much smaller than seeds and don't contain a food reserve for the developing embryo.
In short, dandelions use seeds for reproduction, not spores.