All living organisms, from single-celled bacteria to complex multicellular animals, perform cellular respiration. This is because cellular respiration is the fundamental process by which cells extract energy from food molecules and convert it into a usable form, ATP.

Here's a breakdown:

* Eukaryotes: Plants, animals, fungi, and protists all have mitochondria, the organelles where most of cellular respiration takes place.

* Prokaryotes: Bacteria and archaea, while lacking mitochondria, still carry out cellular respiration. They have specialized enzymes and membrane systems that perform the same basic processes.

However, it's important to note that different organisms may use slightly different pathways for cellular respiration. For example, some bacteria can use alternative electron acceptors in anaerobic environments.

So, in short, all living organisms perform cellular respiration as it's essential for survival.