You may have read that bacteria cells vastly outnumber the animal cells in your body. Bacteria are tiny: that is how this numeric disparity is possible the animal cells in our bodies are rather huge— so the mass loss won’t be as dramatic as you might think.
Digestion seems like it would get wrecked. And who knows what happens to our skin
There are several species of carpenter ants that cannot survive without particular gut bacteria— how common is this for animals? Is every one of us a lichen?