Earthworms eat dead plants and animals. When they eat, they also take in soil and tiny pebbles. Earthworms take in nutrients from microorganisms in the material they ingest. They then excrete wastes in the form of casts.
Do segmented worms have a mouth?
They include a closed, segmentally-arranged circulatory system. The digestive system is a complete tube with mouth and anus. Gases are exchanged through the skin, or sometimes through specialized gills or modified parapodia. Each segment typically contains a pair of nephridia.
How does a worm eat?
They do not have teeth. A liplike extension over the mouth helps direct food into the mouth, where the muscular pharynx (throat) grabs it, coats it with saliva and pushes it down the esophagus into the crop, where it is stored before moving on to the gizzard.