context: There are various types of bacteria that are able to irritate the area of ​​the human digestive tract, especially in the large intestine. [6] The group of bacteria that dominates the human large intestine in general are lactic acid bacteria which are gram-positive bacteria and enterobacter groups which are gram-negative bacteria. [6] These microorganisms live anaerobically and are able to attach to the surface of the human digestive tract. [6] Examples of bacteria that are commonly found are Lactobacillus acidophilus. [6] Some of the bacteria that live in the digestive tract not only absorb nutrients, but also play a role in maintaining the health of the digestive tract and increasing body immunity. [7] There is a group of beneficial bacteria that can support health and even prevent colon cancer. [8] This group of bacteria belongs to the probiotic bacteria group. [8]
question: What microorganisms are good for the human body?
answers.text: probiotic bacteria