by growing them or giving them same antimicrobial drug, bacteria tend to mutate or change their genes which helps them in resisting the drug and those genes also passes from one cell to another.
Through microbes you breath in then the microbes settle and grow into fungus
k
it takes 10hours
There can be other things in the sample beside bacteria that don't grow on this kind of plate like viruses, molds or larger microbes like amoebae. So the sample isn't necessarily sterile.
Microbes evolve. Those which are better able to survive the drugs that people use to kill them will be more likely to give rise to new generations of microbes. It works exactly the same way as any other form of evolutionary pressure.
Yes
Through microbes you breath in then the microbes settle and grow into fungus
Microbes will start to grow on the meat rather rapidly. The longer the meat is at 60°F, the more the microbes will grow.
capnophiles
Yes, mainly by feeding the microbes in the soil.
it takes 10hours
k
It depends on the amount of salt. It can "pull" the water out of the microbes, killing them. This is the reason salt is used to preserve food as microbes can't grow on very salty food.
There can be other things in the sample beside bacteria that don't grow on this kind of plate like viruses, molds or larger microbes like amoebae. So the sample isn't necessarily sterile.
yes.. there is Strep. epidermiswhich cause some Bacterial infectious diseases and these microbes are usually methicillin resistant.
Microbes evolve. Those which are better able to survive the drugs that people use to kill them will be more likely to give rise to new generations of microbes. It works exactly the same way as any other form of evolutionary pressure.
If an antibiotic is used excessively, it may destroy too many of the harmless and helpful microbes in the body, and it may result in the development of a strain of harmful microbes resistant to the antibiotic so that it will no longer be effective in killing them.