Question

Identify the correct pathway of food ingested by an earthworm.

• A. Mouth→Pharynx→Esophagus→Gizzard
• B. Mouth→Esophagus→Pharynx→Gizzard
• C. Mouth→Esophagus→Gizzard→Pharynx
• D. Mouth→Pharynx→Gizzard→Esophagus

Answer 1

Answer:

A. Mouth→Pharynx→Esophagus→Gizzard

Food is ingested by the earthworm through the mouth. The mouth part opens up into the muscular pharynx. This is followed by a narrow esophagus followed by the gizzard where food is broken down by the process of grinding.