Fragmentation: The breaking up of the body of organisms into two or more pieces or fragments on maturing, each of which subsequently can grow into a completely new organism is called fragmentation.
Definition of sporulation
: the formation of spores
sporulation refers to the formation of spores from vegetative cells during unfavorable environmental conditions. As such, it may be described as an adaptive response that allows the organism to survive given adverse conditions (radiation, extreme heat or cold, lack of nutrition etc).