probiotics bacteria . biology, science microscopic medicine. digestion stomach escherichia coli, treatment, health care

coccus pathogens growth resistance extremophiles unicellular pathogenic antibiotic microflora spiral gramnegative thermophiles infection beneficial microorganisms organisms cells metabolism microbiome prokaryotes microbes colonies anaerobic aerobic bacillus bacteria cellwall sell reproduction division harmful plasmids replication symbiotic germs nitrogen acidophiles flagella dna grampositive binaryfission shapes methanogens microscopic nitrogenfixation decomposers halophiles probiotic geneticmaterial ai generated