Some of the archaebacteria cannot undergo a moderately unsalty environment such as seawater. Life on Earth can be divided into three large collections or domains. These archaebacteria can live in absence of oxygen.
Step-by-step explanation:
The Domain Archaea wasn't acknowledged as a main domain of life till quite freshly. Until the 20th century, most biologists acknowledged all living things to be classifiable as either a plant or an animal. But in the 1950s and 1960s, most biologists realized that this system missed accommodating the fungi, protists, and bacteria.
By the 1970s, a system of Five Kingdoms had arrived to be admitted as the model by which all living things could be arranged. At a more primary level, a definition was made within the prokaryotic bacteria and the four eukaryotic kingdoms (plants, animals, fungi, & protists).
Some of the examples of archaea: Euryarchaeota, Crenarchaeota, Bathyarchaeota.