3 Domains of Life: Concept Map Domains Æ Archaea Bacteria Live in extreme environments like the first life-forms on Earth. Live in less harsh environments on modern Earth. Cellular arrangement Æ Most are unicellular. (Organism is 1 cell) Nucleus and DNA Æ No Nucleus. DNA spread out in the cell. Name for these organisms Æ Kingdoms of Classification Æ Eukarya Prokaryotes Monera Some are unicellular. Most are multicellular. Nucleus stores DNA. Eukaryotes Protist, Fungi, Plantae, Animalia Archaea life-form environment Bacteria life-form environment Eukarya and Bacteria life-form environment Unicellular Cellular Arrangement Multicellular No Nucleus With Nucleus