Answer; fragmentation
Step-by-step explanation:
Most animals reproduce by fragmentation. This is a type of asexual reproduction.
In fragmentation, parts of their bodies divides and forms new organisms. Animals that undergo fragmentation as a type of reproduction have high regeneration power.
Regeneration occurs by mitosis division where the daughter cell formed has the same number of chromosomes as the parent cell.
As the cell continues to divide through mitosis,the animal gradually becomes a whole organism.
An example of such animals is sponge (porifera).