AP BIOLOGY

Detailed explanation-1: -No digestion occurs in the esophagus. After passage through the esophagus, the bolus will enter the stomach and undergo mechanical and chemical digestion.

Detailed explanation-2: -Oesophagus is the part of the alimentary canal where no digestion occurs.

Detailed explanation-3: -The oesophagus is the tube-like structure present in the alimentary canal through which food passes from the mouth into the stomach. The oesophagus acts as an organ for the conduction of food and no digestion occurs here.

Detailed explanation-4: -It is a muscular tube that moves the incompletely processed food from mouth to stomach for additional absorption. Hence, Esophagus is one part of the digestive system where no digestion happens.

Detailed explanation-5: -The spleen is not part of the digestive system, however, is connected to the blood vessels of both the stomach and the pancreas.