Question

under the newest system of classification, organisms are classified into three domains and six kingdoms. the kingdoms are archaea (ancient bacteria), bacteria (true bacteria), protista, fungi, plantae, and animalia
organisms in the kingdom bacteria or the true bacteria are in the domain
bacteria.
monera.
eukarya.
archaea.

Explanation:

In the three - domain system (Bacteria, Archaea, Eukarya), the kingdom Bacteria (true bacteria) is classified under the domain Bacteria. Monera is an older classification and not part of the three - domain system. Eukarya contains eukaryotic organisms (Protista, Fungi, Plantae, Animalia). Archaea is a domain separate from Bacteria, containing ancient bacteria - like organisms.

Answer:

A. Bacteria