If we cut each of the followinmg worms in half which one would regenerate into two new worms?

If you cut a planarian worm in half, it has the ability to regenerate and develop into two new worms. Planarians possess remarkable regenerative capabilities due to their high concentration of pluripotent stem cells. In contrast, most other worms, such as earthworms, can regenerate certain segments but typically do not create two complete organisms from a single cut.