What do bacteria do inside your digestive tract? A) Tey build simple molecules into more complex ones. B) They destroy harmful food additives. C) They break down molecules that your body can't break down.
it is c i hope this helps you
bacteria is good, but there is some bad. in this case, your talking about your digestive track therefore, this is good bacteria and what bacteria does is it breaks down the stuff that your body cannot break down by itself so the answer is C I hope this helped and I hope it was the branist answer