What structures prevent bacterial cells in the lumen

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How does the mechanism by which a steroid hormone is detected differ from the mchanism by which a peptide hormone is detected?

what structures prevent bacterial cells in the lumen of the small intestine from entering our blood stream?

Reference no: EM13112629

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What structures prevent bacterial cells in the lumen : How does the mechanism by which a steroid hormone is detected differ from the mchanism by which a peptide hormone is detected?

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