素材 - The intestinal flora and humans have a mutualistic relationship. The human body contains about 100 trillion microbes in the intestinal tract, a number 10 times greater than the total number of human cells in the body.
The intestinal flora and humans have a mutualistic relationship. The human body contains about 100 trillion microbes in the intestinal tract, a number 10 times greater than the total number of human cells in the body.