That member of the kingdom would be a moneran, also known as a prokaryote.

Here's why:

* Monera is the kingdom that includes bacteria and archaea. These organisms are single-celled and have a simple structure compared to more complex life forms like plants and animals.

* Prokaryotes are organisms that lack a nucleus and other membrane-bound organelles within their cells. This simple structure is a defining characteristic of Monera.

Let me know if you have any other questions!