Question

What is the difference between regeneration and fragmentation?

Answer 1

Fragmentation	Regeneration
1. Fragmentation occurs in multi-cellular organisms with simple body organisation.	1. Regeneration occurs in fully differentiated multi-cellular organisms with complex body organization.
2. In fragmentation, an organism breaks into pieces and each piece develops into a new individual.	2. In regeneration organisms, if breaks into pieces, each piece may or may not develop into a new individual.
3. No specialised cells are involved in fragmentation.	3. In regeneration, specialised cells proliferate and form a mass of cells. The cells from the mass differentiate to form different cells types and tissues.
Example: Spirogyra	Example: Regeneration of blood cells in mammals.