That well known experiment with bacteria discussed here actually produced a new species of bacterium. The experiment began with a species of bacterium which was killed by acetic acid; after many generations, all preserved as proof of what was done, a species of bacterium evolved which was not killed by acetic acid.
Still a bacterium, but a new bacterium -...
So then prokaryotes producing "more prokaryotes"?? who would have guessed? And not a single one having a nucleus...
"survey by Jason Gans found there to be about a million
bacterial species per 0.035 ounces (1 gram) of soil. While only a few bacterial species dominate the soil, there is a huge number of low-abundance species" from:
How Many Species of Bacteria are There? (with pictures)
As the story telling would have it --
"Prokaryotic cells are much older than Eukaryotic (by about
3 billion years), yet they never evolved past small, single celled organisms."
The story telling is pretty amazing
from -
First Eukaryotes
"No one is certain how eukaryotes came into being. The
endosymbiotic theory suggests that bacteria were engulfed by larger cells. The bacterial cells remained in the cell, assumed some of the chemical reactions for these cells, and became the mitochondria of these cells. The cells then reproduced and flourished, becoming animal cells."
"An extension of the endosymbiotic theory refers to plants. In this case, pigmented bacteria, such as the cyanobacteria, were engulfed by larger cells."
Clearly Eukaryotes represent a higher level of complexity than prokaryotes - and so they claim prokaryotes "created" eukaryotes.