Um... a lot of things.
One horrible example would be that things would rot much slower or not at all. This would cause all of the worlds carbon dioxide to become quickly locked up in dead plant matter. However, new species would have to quickly evolve to take the saprotrophic niches.
Thankfully this can't happen.
Death.
they would eventually die
if we didnt have lactase we would all be dead
it will result into a non functional protien
well if an animal cell didnt have one then it will have an odd shape
nothing
we would die
You would die
you would blow up
If there were no microorganisms on earth, nothing else would be living, either.
what would happen if the 8th amendment didn't exist
plants will die
you die
?
Death.
we have freedom
Nothing would happen. You either believe in them or you don't!