Do clams have complete or incomplete digestive tracts?

Clams have a mouth, esophagus, stomach, intestine, and anus. They use their mouth to take in food, which then travels through the esophagus to the stomach. The stomach secretes digestive juices that break down the food into smaller molecules. The food then passes into the intestine, where it is absorbed into the clam's body. The remaining waste products are expelled through the anus.