The life of an Earthworm
Earthworm dissection Michelle Tamez 4/4/14 VU-Pre-AP bio-1
The digestive system of a Earthworm
The digestive track of an earthworm starts when a earthworm takes in the soil and it goes into the mouth. The earthworm swallows the soil and it goes through its esophagus and lets the body release any extra calcium. Next, the food reaches the crop where it is stored and then the food is passed to the gizzard. In the gizzard food ids completely grinned. Lastly, the food moves into the intestinal wall which has blood vessels to help it digest the food and absorb and transport nutrients to the rest of the body.The digestive system gives nutrients to the rest of the body and organs, the body can not function without having a type of energy coming in.
Facts about earthworms:
The parents of an earthworm mate, then they are kept in a cocoon. Hatchlings are worms that have just hatch and later grow into juvenile.
There are over 6,000 types of earthworms. out of all the earthworms only about 150 are found in the United States.
In earthworms, both females and males produce both sperm and egg. A ring is then produced around one of the worms and the sperm and eggs are placed inside. the ring then seals shut for a cocoon for the developing eggs.