During fragmentation, one organism divides into two or more minor segments (pieces) and later each of these segments grows independently and becomes a new organism.
Examples of fragmentation:
Fragmentation in Planaria:
The body of the Planaria splits into two pieces and each of the pieces becomes a new organism.
Fragmentation in Spirogyra:
Spirogyra is a filamentous green alga found in ponds and lakes.
Asexual reproduction in spirogyra occurs by fragmentation.