they belong to class prokaryotes...
Bacterias do not reproduce sexually.
yes.some of the bacterias are useful but some are not.some specific type of bacterias are using as medicine also.
it depends on the type of the bacteria. also beneficial bacterias outnumber the population of harmful bacterias.
Some bacterias are nice but some are not like bacterias that wont harm you are nice ones and the one who harms arr viruses
molds
all of them
pathogens
bad hygeine
It is a broadspecrum antibiotic with very good result in gram negative bacterias and gram positive bacterias.
nothing
bacterias
stomach. . .