THE DIGESTIVE TRACT AS AN ECOSYSTEM.
D000818:Animals; D001439:Bacteroides; D002432:Cecum; D017753:Ecosystem; D005856:Germ-Free Life; D007421:Intestine, Small; D007422:Intestines / Q000382:microbiology*; D007778:Lactobacillus; D051379:Mice; D012106:Research; D013270:Stomach; D013291:Streptococcus
BACTEROIDES; CECUM; EXPERIMENTAL LAB STUDY; GERM-FREE LIFE; INTESTINAL MICROORGANISMS; INTESTINE, SMALL; LACTOBACILLUS; MICE; STOMACH; STREPTOCOCCUS