Answer:
Single celled prokaryotes, no nucleus, free floating genetic material
Step-by-step explanation:
The characteristics of archaebacteria include the following -
1. All the archaebacteria are unicellular organism, which are the oldest prokaryotes found on earth.
2. They are capable to survive in extreme weather conditions such as volcanoes
3. Their cell wall is made up of lipids with linkages of "ether"
4. They are devoid of nucleus, Golgi complexes, lysosomes, ER, mitochondria.
5. Cell organelles are not membrane bound and thus genetic material floats freely.