doing things when told such as chores, babysitting, etc. doing these things efficiently so mistakes are hard to make. taking responsibility when something bad happens in your care
Answer:
the esophageal sphincter
Explanation:
This muscle opens and lets food and liquid enter the stomach and closes to prevent the food and liquid from leaking back into the esophagus, however if it is not working properly it could open and close at the wrong times
Answer:
D, last one
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