BIO 205IN (BIO 205IN)

1. Prior to birth, in the womb, were you sterile? 2. Where do the microorganisms come from that first colonize a newborn human? 3. What decides which microorganisms become resident flora for the newborn human? 4. Where does the Escherichia coli come from that colonizes the gastrointestinal tract? Why would a newborn baby in a developing country likely be colonized by E. coli much sooner than a newborn baby in the United States or other developed nation? 5. Do human pathogens colonize a ne...