Question

Bacteria occurring in our intestine are beneficial, they synthesise certain vitamins, such as ___________.

• A. vitamin A
• B. vitamin B
• C. vitamin C
• D. vitamin D

Answer 1

The correct option is B

vitamin B

Bacteria occurring in our intestine are beneficial, they synthesise certain vitamins, such as vitamin B. In our own body, there are hundreds and thousands of bacteria in the mouth, on skin, inside the intestine, in the genital tracts, etc.