Compositional layers are determined by their components, while mechanical layers are determined by their physical properties.
Answer:
Answer is bile
Cholecystokinin is secreted by cells of the upper small intestine. Its secretion is stimulated by the introduction of hydrochloric acid, amino acids, or fatty acids into the stomach or duodenum. Cholecystokinin stimulates the gallbladder to contract and release stored bile into the intestine.
<span>In a situation where you are assessing a patient who is 72 years of age and complaining of abdominal pain, the patient is conscious and alert and very calm but as you discuss the case with the patient your partner notices and discreetly directs your attention to a gun that is on a table near you, you should find a way to position yourself between the gun an the patient and then have your partner bring in law enforcement to assist with the situation.</span>