Answer by
jwood (18)
Microorganisms called gut flora, which can be found in the digestive tract include bacteria from the generas Bacteroides, Clostridium, Fusobacterium, Eubacterium, Ruminococcus, Peptococcus, Peptostreptococcus, Bifidobacterium, Escherichia and Lactobacillus. Bacteria from the genus Bacteroides makes up about 30% of bacteria in the gut. Over 99% of the bacteria in the gut are anaerobes.