No, all known living organisms are made up of cells. Cells are the basic building blocks of life, and they are essential for the structure and function of living beings.
To understand this better, it’s important to know that cells come in two main types: prokaryotic cells, which are simple and do not have a nucleus (like bacteria), and eukaryotic cells, which are more complex and have a defined nucleus (like plants and animals). Both types of cells perform vital functions that keep organisms alive, such as metabolism, growth, and reproduction.
While there are entities like viruses that can replicate and evolve, they do not constitute living organisms in the traditional sense because they lack cellular structure. Viruses need to infect host cells to reproduce and do not exhibit the fundamental characteristics of life independently.
In conclusion, cells are crucial for life as we know it, and there are no known examples of living organisms that exist without them.