Organisms in the Eukarya domain can be unicellular or multicellular, those in the Archeae domain are unicellular, while those in the Eukarya domain contain a nucleus.
The eukarya domain consists of organisms whose cells have nuclei. They can be simple unicellular or complex multicellular in nature. Eukarya cells have membrane-bound organelles such as chloroplasts and mitochondria. Examples include plants and animals.
Organisms in the Archeae domain are unicellular and their cells lack nuclei. They are found in extreme environments such as hydrothermal vents and hot springs. Examples include cyanobacteria.
More on domain classification of organisms can be found here: https://brainly.com/question/436484?referrer=searchResults
