Back Einzeller ALS Organismo unicelular AN كائن وحيد الخلية Arabic এককোষী জীৱ Assamese Organismu unicelular AST Birhüceyrəli orqanizmlər Azerbaijani بیر سللوللو اورقانیزملر AZB Аднаклетачныя арганізмы Byelorussian Едноклетъчно Bulgarian এককোষী জীব Bengali/Bangla
Unicellular organisms are organisms that have one cell. They are divided into two quite different types, from different classification kingdoms.
- The prokaryotes, bacteria and archaea, have cells with no nucleus and a simple cell structure.
- Eukaryotes have a nucleus, and a more complex cell structure.
The differences between the prokaryota and eukaryota are significant. Eukaryotes possess a nucleus and various subcellular organs called organelles, and prokaryotes do not.