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yes it is
by sunlight or by using nutrients around them (if sunlight isn't available)
The bacteria absorb nutrients in the gut from digested food - the human benefits from the production of the vitamin.
Bacteria breaks down and converts other living and dead organisms into food. If it werent for bacteria and detritus feeders the earth would be scattered with dead animals and trees
some help you digest your food, some make vitamins that your body needs, others compete for space with disease causing organisms, preventing the harmful bacteria from attaching to your intestines and making you sick
Because...
it tastes it
eubacteria
yes
true!
by wind by food by water by direct contact
yes it is
Packaged food can become contaminated through poor production practices, packaging failure or mishandling anywhere along the production-distribution-consumer route.
if someone eats spoiled food they could get food poisoning, and if you get bacteria inside your stomach you couldget diarrhia
Well bacteria can sometimes be dumped in oil spills to get rid of the oil.Certain bacteria in your stomach can used for digesting food.Also,bacteria can be used for studies in science.
Bacteria are helpful to us in many ways. One way is by helping us digest our food. They also make vitamins in our digestive tract. They also help make our food by fermenting it, like cheese.
Bacteria and yeast are used to preserve food. Most microorganisms are present in the food already, but in some cases, they are added.