Question

Diff. B/w regeneration and fragmentation.

Answer 1

One of the main differences between the two, is that regeneration occurs in every single organism some way or the other. But fragmentation is a method of asexual reproduction used by the invertebrates (sponges,starfish etc.)

Answer 2

Fragmentation is when an organism is split into fragments, and each fragment grows into complete, individual organisms that are clones of the original organism.

Regeneration is the process of regrowth that organisms that allows for partial or complete regrowth of tissue after a damaging event.

The difference is that fragmentation specifies two parts each growing into complete organisms, but regeneration is simply a general process of regrowth. Few species are capable of fragmentation, but ALL species undergo regeneration, to varying degrees.