In earthworms many Enzymes are present

Explanation

The pharynx of an earthworm, particularly the pharyngeal mass, is where various digestive enzymes are secreted. These include protease, which breaks down proteins into amino acids, and mucin, which aids in softening the food. The other structures mentioned, such as the typhlosole, intestinal caeca, and esophagus, have roles in the digestive process but are not primarily responsible for enzyme production. The typhlosole increases absorptive surface area, the intestinal caeca have a minor role in digestion, and the esophagus is merely a passageway for food.