Which two domains of life are made up of prokaryotes?

1. Prokaryote means before nucleus, so the label applies to cells without a true nucleus. 2. Only the predominantly single-celled organisms of two domains qualify. 3. Those domains are Bacteria and Archaea. 4. Animals, plants, fungi and protists are all eukaryotes instead. _Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 4 'Cell Structure', sections 4.1-4.6_