When an organism of many cells breaks up into two or more parts and these parts survive to produce a new organism, reproduction occurs by fragmentation.
In this asexual form of reproduction, the organism is split into several parts and these parts then grow into fully mutated organisms that resemble their parent cells.
The other options are also reproduction forms but they do not split like as in fragmentation.
Fragmentation or excision is a method of asexual animal reproduction by which an individual is divided into two or more individuals each of whom is able to rebuild an organism completely; For example, starfish with six or more arms, perform this method, and once split in a longitudinal direction they are able to regenerate each of the incomplete parts and even regenerate the whole organism from a single arm.
