题目
题目
单项选择题

The commensal microbes that populate our gastrointestinal tract:[Fill in the blank]

选项
A.a. are immediately restored following disruption of the stable environmental niche.
B.b. may vary in composition throughout an individual’s lifetime.
C.c. require an aerobic environment to maintain a stable population.
D.d. derive nutrients by degrading the mucosal cell lining.
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思路分析
The question asks about commensal microbes in the gastrointestinal tract and provides four options to choose from. Option a: 'are immediately restored following disruption of the stable environmental niche.' This implies a rapid, complete re-establishment every time of a predefined community, which is not accurate because the microbiome composition ......Login to view full explanation

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