That statement is incorrect. The classification system most commonly used by biologists today contains three domains, not five.

Here's the breakdown:

* Domain Bacteria: Prokaryotic organisms (lacking a nucleus)

* Domain Archaea: Another group of prokaryotes with unique characteristics, often found in extreme environments.

* Domain Eukarya: Organisms with cells containing a nucleus and other membrane-bound organelles, including plants, animals, fungi, and protists.

While there are other classification systems proposed, the three-domain system is widely accepted in the scientific community.