Match components of the earthworm digestive tract with their function.

Sure, here are the components of the earthworm digestive tract and their functions:

1. Mouth: This is where the digestion process begins. The earthworm ingests soil particles and organic matter.

2. Pharynx: This is a muscular structure that pumps in soil into the esophagus.

3. Esophagus: This is a short tube that connects the pharynx to the crop. It secretes calcium carbonate to neutralize the acids in the ingested materials.

4. Crop: This is a storage area where the ingested soil and organic matter are mixed and moistened.

5. Gizzard: This is a muscular structure that grinds the soil and organic matter into smaller pieces.

6. Intestine: This is a long tube where the actual digestion and absorption of nutrients occur. The intestinal wall secretes enzymes that break down the organic matter into simpler substances that can be absorbed into the earthworm's bloodstream.

7. Anus: This is where the undigested materials (castings) are expelled from the earthworm's body.