- #1
hivesaeed4
- 217
- 0
We know that a lot of bacteria are present in our body like in our stomach etc. Where do they come from? It's hard to think that at fertilization there is information stored somewhere in the fertilized egg that these bacteria are to be produced which will help in digestion. In other words they probably have to come through the environment. Thoughts?
By the way if they do come through the environment, why are'nt they attacked by the immune system?
By the way if they do come through the environment, why are'nt they attacked by the immune system?