What four phases can digestion be broken down to in an earthworm?

1. Ingestion: Earthworms ingest organic matter from the soil through their mouths.

2. Digestion: The ingested organic matter is broken down into simpler molecules in the earthworm's gut by enzymes.

3. Absorption: The broken down molecules are absorbed through the walls of the earthworm's gut into its bloodstream.

4. Egestion: Undigested material is eliminated from the earthworm's body as waste.