Micro Organisms
The unifying feature of the archaea that distinguishes them from the bacteria is

cytoplasmic ribosomes that are 70S
presence of a cell wall containing a characteristic outer membrane
absence of a nuclear membrane temperature
habitats which are extreme environments with regard to acidity

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Micro Organisms
Eukaryotic cell organelles first emerged

when prokaryotes engulfed each other and became interdependent
when bacteria made their first attempts at reproduction
from a specialized lineage of cells within the kingdom Protista
just before the origin of the animal and fungal kingdoms

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