Um, <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Human_microbiota" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Human_microbiota</a> --- in human bodies, &quot;bacteria seem to outnumber cells 10 to 1&quot;.<p>Mitochondria, the &quot;power houses of cells&quot; seem to be bacteria.