Babies only acquire their intestinal microbiome after birth

Question

BlackTom AI · Accepted Answer

Question: Babies only acquire their intestinal microbiome after birth

Option 1 - True:
- This statement asserts that microbial colonization starts only after birth. While birth is a major event where a newborn is first exposed to a vast array of microbes, there is evidence suggesting that initial microbial exposure can begin during the birth process itself, through contact with the maternal birth canal and vaginal microbiota. Additionally, some microbial exposure may occur via breast milk after birth, and even in utero there are reports of low-level microbial presence, though this is a topic of ongoing research and debate. Therefore, saying colonization occurs exclusively after birth ignores these early exposure routes and is oversimplified.

Option 2 - False:
- This option correctly challenges the absolutist claim of the statement. It acknowledges that the microbiome’s establishment is a process that begins around birth and is influenced by multiple sources, including maternal vaginal and skin microbiota, the birth environment, and feeding practices like breastfeeding. The statement that babies acquire their intestinal microbiome only after birth fails to recognize these pre- and perinatal exposures and the rapid colonization that begins at birth, making it inaccurate overall.

In summary, the claim in Option 1 is an overstatement that ignores early exposure pathways, while Option 2 accurately identifies the insufficiency of claiming an exclusive post-birth origin. The reasoning here emphasizes that initial microbial contact can occur around the birth event and that colonization is a dynamic, multi-source process beginning at or near birth, not strictly confined to postnatal time after birth.

My LMS Subjects Quiz Topic 8: Making an ecosystem

Babies only acquire their intestinal microbiome after birth

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