Which of the following statements is true? a thin layer of chyme protects the lining of the digestive tract from being broken down by enzymes. hydrochloric acid (hcl) begins the partial digestion of fats in the small intestine. cystic fibrosis is an infectious disease that causes the muscles that control swallowing to malfunction. heartburn often results when the gastroesophageal sphincter fails to close properly.

The correct answer is: Heartburn often results when the gastroesophageal sphincter fails to close properly.

The gastroesophageal sphincter is a muscle located at the bottom of the esophagus that has to be relaxed in order to allow food to flow down into the stomach. After it contracts (tightens), the food and the stomach acid can’t flow back up into the esophagus.

When the gastroesophageal sphincter fails to close properly acid reflux occurs and causes the heartburn.

answer: i cant find your answer. do u have another way i can answer it for you : )

explanation:

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called