Here's why:

* Archaebacteria (now known as Archaea) are a domain of single-celled organisms that are distinct from bacteria and eukaryotes. They are often found in extreme environments like hot springs, salt lakes, and acidic environments.

* Fungi belong to their own kingdom, called Fungi. They are eukaryotic organisms, meaning they have a nucleus and other membrane-bound organelles.

The five kingdoms of life are:

1. Monera: Includes bacteria and cyanobacteria.

2. Protista: Includes algae, protozoa, and slime molds.

3. Fungi: Includes mushrooms, yeasts, and molds.

4. Plantae: Includes all plants.

5. Animalia: Includes all animals.

While Archaebacteria were once considered part of the Monera kingdom, they are now recognized as a separate domain, making them distinct from fungi.