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bacteria, dinosaurs, and man




David,
Even if you don't agree that Metabacteria ("Archaea") evolved from bacteria (but believe it or not, even Woese briefly admitted this in the journal Science in 1990)--- it is still undeniable that our mitochondria are descendants of Eubacteria (Class Proteobacteracea). And our peroxisomes are also descendants of Eubacteria (probably Class Posibacteracea). Some go even farther than I do, and believe the host eukaryotic cell was also eubacterial (and only the nucleus is metabacterial).
And if I am correct about metabacteria, they too evolved from eubacteria, and our eukaryotic cells are each a highly-evolved little community of eubacterial descendants. And I am far from alone in believing that metabacteria ("archaea"; "archaebacteria") are eubacterial descendants (Thomas Cavalier-Smith has published mountains of evidence on this). But there is admittedly skepticism about the timing, my claim that they arose up to a billion years later than the eubacteria (but even if they arose a mere ten million years after eubacteria, they would still be eubacterial descendants, just as surely as birds are reptile descendants).
When a dinosaur or human got (gets) a bacterial infection, the invader is fighting against a highly sophisticated community made up of its distant eubacterial cousins. Being a conglomeration of bacterial descendants, we eukaryotes definitely did evolve from bacteria.
-----Ken Kinman
P.S. Not to mention that Lynn Margulis believes eukaryotic flagella/cilia evolved from spirochaetes (also eubacteria). But I have strong doubts about that theory.
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From: "David Marjanovic"
> If man evolved from bacteria,

We didn't (if we don't agree with HP Ken Kinman, that is, and I don't know
most of his evidence). Eucarya (or -k-?) + Archaea is considered the sister
group to Bacteria.
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