Eukarya

The human-devised domain Eukarya includes all life-forms that produce energy through a cellular metabolic process using oxygen, glucose, and water as the primary reactants. This domain will at some point need to be modified to include those life-forms that currently constitute the domain Bacteria, since these organisms produce their energy by the same means, despite their lack of a nucleus.

Humans are the only species on Tetro which are classified in this domain.