LIFE SCIENCE

Detailed explanation-1: -Prokaryotes are creatures without a nucleus or other organelles in their cells. Early in the history of life, the two prokaryote domains namely Bacteria and Archaea, separated from one another. Bacteria and Archaea are the prokaryote domains that are thought to have distinct evolutionary histories.

Detailed explanation-2: -The two-domain system defines classification of all known cellular life forms into two domains: Bacteria and Archaea. It overrides the domain Eukaryota recognised in the three-domain classification as one of the main domains.

Detailed explanation-3: -Both Bacteria and Archaea are prokaryotes, single-celled microorganisms with no nuclei, and Eukarya includes us and all other animals, plants, fungi, and single-celled protists – all organisms whose cells have nuclei to enclose their DNA apart from the rest of the cell.

Detailed explanation-4: -Prokaryotes are divided into two distinct groups: the bacteria and the archaea, which scientists believe have unique evolutionary lineages. Most prokaryotes are small, single-celled organisms that have a relatively simple structure.