Prokaryotes

Prokaryotes are single-celled organisms that lack a nucleus and other membrane-bound organelles. They are among the simplest forms of life and include bacteria and archaea. Prokaryotic cells are typically smaller than eukaryotic cells (which have a nucleus) and reproduce by binary fission, a process where one cell splits into two. They can thrive in diverse environments, from soil to extreme heat or acidity. Prokaryotes play vital roles in ecosystems, such as decomposing organic matter and helping with nutrient cycling, and some can cause diseases in humans and other organisms.