Fragmentation never occur in a unicellular organism !!
Depending on what happens with the environment if its a decline in resources it could completely fall and tear itself apart it just depends really on what you think of just make up a situation in your head and talk about that
Answer: bacteria
Explanation:
Prokaryotes are living organisms with one cell (unicellular) with no nuclear envelope, and cell organelles lacking membranes. Examples of Prokaryotes include bacteria and cyanobacteria
I don't know what you mean by your question, but if you are making an appropriate title it will be good if you title it that is unique and would want to make your reader more interested with your story. Just trying to help :)