Answer:
Bacteria is the biggest example but these are also examples blue-green algae, E. coli, and mycoplasma.
Step-by-step explanation:
This is what it is: Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.
HOpe this helps!!