About a third of all bacteria in the gut are members of what species?
- Correct Answer: bacteroides
- trematodes
- actinomyces
- spirochetes
Explanation: A wide range of friendly bacteria live in the gut. Bacteria begin to populate the human digestive system right after birth. Gut bacteria include Lactobacillus , the bacteria commonly used in probiotic foods such as yogurt, and E. coli bacteria. About a third of all bacteria in the gut are members of the Bacteroides species. Bacteroides are key in helping us digest plant food.
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