What term describes the growth of new individuals from severed body parts?

Fragmentation is a form of asexual reproduction where new individuals grow from severed or separated body parts of a parent organism. This process involves the breaking of an organism into pieces, each of which can then develop into a new individual. This method of reproduction is observed in various organisms, including certain starfish, flatworms, and some species of plants.

In contrast, fission refers to the splitting of a single organism into two or more separate organisms, typically seen in simpler life forms like bacteria. Budding, on the other hand, is a process where a new organism grows off the parent organism as a smaller version and eventually detaches. Lastly, polyploidy is a genetic condition involving the duplication of chromosomes, which is more relevant in the context of speciation and genetic variation than in asexual reproduction.