Why will a dandelion grow back if the entire taproot is not pulled up?

A dandelion can grow back if the entire taproot is not pulled up because it relies on this root system for nutrient storage and energy. Even a small portion of the taproot left in the soil can regenerate the plant. Additionally, dandelions are adapted to thrive in various environments and possess the ability to reproduce quickly, making them resilient against attempts to eradicate them. This adaptability is why they can re-emerge even after being partially removed.