Which process involves the creation of new individuals from the growth of existing individuals?

The correct choice is the process of budding, which involves the formation of new individuals from an outgrowth or "bud" from the parent organism. In budding, the new organism develops while still attached to the parent, eventually detaching when it is mature enough. This method of asexual reproduction is seen in various organisms, such as yeast and hydra, where the genetic material and cellular structures are identical to the parent, ensuring the new individual is a clone.

In contrast, fission refers to the splitting of a single organism into two or more separate entities, often seen in unicellular organisms. Fragmentation involves an organism breaking into pieces, with each piece capable of growing into a new individual, commonly observed in some starfish and worms. Nondisjunction is a genetic process that occurs during cell division, where chromosomes fail to separate properly, leading to an abnormal number of chromosomes in daughter cells, which is not related to the creation of new individuals.