Unearthing The Earthworm
Earthworm Dissection Pre Ap Biology April 8 2014
TaxonomyThe scientific name of the earthworm is Lumbricus terrestris and it belongs to the phylum Annelida.
Earthworms have many predators including snakes, birds, and rodents. Earthworms are primary consumers. Earthworms live in humid or slightly cold environments with moist soil; mostly in the the United States, Canada, Europe, and Russia.
In order to get food, earthworms suck dirt into their mouths. As the dirt moves through their digestive system, nutrients and food are separated . They let out coelomic fluid to help them move through the soil more easily. They exchange gases between the environment and it's circulatory system through their skin.
Humans have some negative impacts on earth worms. Pesticides and chemical fertilizers that are used during farming often kill the worms.