What kind of functions happen in the mouth
esophagus
stomach
small intestine
and large intestine

Explanation:

Digestion of carbohydrates begins in the mouth,the teeth masticates the food into minute droplets. Also,the salivary glands produces saliva which softens the chewed food to be swallowed easily into the oesophagus.

In the oesophagus, the muscles contracts and relaxes to push the chewed food into the stomach.

The movement of the chewed food from the oesophagus into the stomach is known as

peristalsis.

In the stomach, the digestion of protein begins in there.

Hydrochloric acid is produced to kill the bacteria present in the food.

In the small intestine,the intestinal juice enhances the digestion process,hence digestion ends in the small intestine

several tissues working together form an organ, and several organs together make up an organisms.

the group of cell that carries out special jobs are tissue.