Describe the digestive system of earthworm
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The digestive system consists of the pharynx, the esophagus, the crop, the intestine and the gizzard. Food such as soil enters the earthworm'smouth where it is swallowed by the pharynx. ... There are three main vessels that supply the blood to organs within the earthworm.
Just inside the mouth the tube expands into a strongly muscular pharynx. ... Thefood is then pulled back into the mouth and passes back into the worms' gizzard. The food is ground down by the gizzard before it passes into the worms' intestines and eventually out through to the anus as castings.
Just inside the mouth the tube expands into a strongly muscular pharynx. ... Thefood is then pulled back into the mouth and passes back into the worms' gizzard. The food is ground down by the gizzard before it passes into the worms' intestines and eventually out through to the anus as castings.
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