Question

Are there two or three domains of life?

Answer 1

Domain of life

1. In the study of living systems, all the organisms that exist are organized together in the domains.
2. These domains represent different forms of life both structurally and functionally.
3. The three-domain system classification of eukarya, bacteria and archaea is the most widely accepted.
4. All life on earth has originated or evolved from these three domains.
5. Eukarya and bacteria differ primarily in having a nucleus, organelles, etc while archaea and bacteria differ in their cell wall composition, metabolism, etc.