Understand the definition of prokaryotes: Prokaryotes are organisms that lack a nucleus and other membrane-bound organelles. They are typically unicellular.
Identify the domains of life: The three domains of life are Bacteria, Archaea, and Eukarya.
Recognize which domains contain prokaryotes: Both Bacteria and Archaea consist of prokaryotic organisms.
Differentiate between prokaryotic and eukaryotic domains: Eukarya is the domain that contains eukaryotic organisms, which have a nucleus and membrane-bound organelles.
Conclude that the domains containing prokaryotes are Bacteria and Archaea, as these are the only domains composed of organisms without a nucleus.