They break down organisms into soil
Bacteria, fungi, any type of decomposers.
Prokaryotes have no membrane covered organelles. The word means 'before the nut'. 'Nut' in this case is a nucleus. These are primitive one-celled organisms like bacteria.
No, bacteria does not have a single membrane covered organelle.
Nature. The oceans have been leaking oil for millennium, and if these organisms didn't exist, every beach in the world would be covered in oil.
Cows are covered in feathers
The tongue is covered with bacteria, and when pierced, that bacteria can get in the bloodstream and underlying tongue tissues.
Both living and dead animals host bacteria. If something is wet at all its very often covered with bacteria.
Amoeba, Paramecium, Blue-green algae are examples of uni-cellular organisms.
When organisms died in a river or stream of some sort, they are covered in a layer of sediment, as time gos by the sediment hardens and is covered by another layer of sediment and so on.
Yes we would not survive without the good bacteria. Most of our surfaces are covered with good or neutral bacteria - in case they are eliminated e.g. by antibiotics or too much wash the bad bugs jump on the site to make their evil deeds. An example is the vagina, with in normally populated with good lactic acid bacteria. Only when they stop dominating, other organisms take over at the woman may acquire bacterial vaginosis or thrush
release hormones
when food is uncovered for a long time micro organisms adapt the food which causes damage to our health. in covered food micro organisms cannot occupy it