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Biology, 19.02.2020 00:02 powellmj9216
Heartburn is usually caused by the .a. irritation of the lower esophagus by substances in spicy food. b. reflux of chyme from the stomach into the lower esophagus. c. secretion of acid by the lining of the lower esophagus. d. retention of food at the bottom of the esophagus by a sphincter that is reluctant to open.
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Heartburn is usually caused by the .a. irritation of the lower esophagus by substances in spicy food...
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