Question

Of which domains are the prokaryotes members?

Answer 1

The answer is a. Archaea and Bacteria.

According to the modern taxonomy, the highest taxonomic rank of organisms is a domain. The classification is based on differences of ribosomal RNA. There are three domains in the tree of life: Archaea, Bacteria, and Eukarya. Archae and Bacteria are Prokaryotes, unicellular organisms without a nucleus and organelles. Eukarya mostly includes multicellular organisms with a nucleus and organelles.