| 41. | That's important because the gastrointestinal tract contains lots of bacteria, many of them beneficial.
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| 42. | In the gastrointestinal tract, epithelial cells proliferate and die rapidly.
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| 43. | The condition may affect the gastrointestinal tract or the skin.
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| 44. | It is corrosive to the eyes, skin, and gastrointestinal tract.
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| 45. | The gastrointestinal tract may have evolved its nocturnal defenses for exactly the same reasons.
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| 46. | ANTHRAX : Anthrax is an acute bacterial infection of the skin, lungs or gastrointestinal tract.
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| 47. | Pilots underwent gastrointestinal tract would expand rapidly during ascent.
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| 48. | The human gastrointestinal tract is around 9 meters long.
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| 49. | Lactobacillus reuteri is a natural inhabitant of the gastrointestinal tract and is an excellent probiotic.
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| 50. | This article is primarily about the human gastrointestinal tract.
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