alleryStart learning →The microbes living in the human gut provide which benefit?
AThey make red blood cells
BThey make vitamin K
CThey filter the blood
DThey cool the body down
Answer & Solution
Correct answer: B. They make vitamin K
1. Not all microbes cause disease; most are actually beneficial.
2. The microbes in your gut make vitamin K, a benefit the body cannot supply on its own.
3. Blood cells and blood filtering are jobs of your own organs, not of gut microbes.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 4 "Cell Structure", section 4.2 Prokaryotic Cells_
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