Earthworm

An earthworm is a tube-shaped, segmented worm found in the phylum Annelida. They are commonly found living in soil, feeding on live and dead organic matter. Its digestive system runs through the length of its body. It conducts respiration through its skin. An earthworm has a double transport system composed of coelomic fluid that moves within the fluid-filled coelom and a simple, closed blood circulatory system. It has a central and a peripheral nervous system. The central nervous system consists of two ganglia above the mouth, one on either side, connected to a nerve cord running back along its length to motor neurons and sensory cells in each segment. Large numbers of chemoreceptors are concentrated near its mouth. Circumferential and longitudinal muscles on the periphery of each segment enable the worm to move. Similar sets of muscles line the gut, and their actions move the digesting food toward the worm's anus.

Earthworms are hermaphrodites—each individual carries both male and female sex organs. They lack either an internal skeleton or exoskeleton, but maintain their structure with fluid-filled coelom chambers that function as a hydrostatic skeleton.

Earthworm (disambiguation)

Earthworm is a common name referring to many various species of worm which typically live underground.

Earthworm or The Earthworm may also refer to:

Earthworm (album)

Earthworm is the twenty-second album by the Finnish experimental rock band Circle.

The album has vocals and guitar from Bruce Duff of the band Jesters of Destiny. Circle's relationship with Duff began when Jussi Lehtisalo re-released the Jesters' album Fun at the Funeral on his Ektro Records label. Two tracks from Earthworm (the title track and "Connection") were re-issued twice, firstly on a 7" single included in the 2008 vinyl edition of Circle's album Tulikoira, and on the band's full length album collaboration with Duff from 2008, Hollywood.

Track listing

Personnel

References

External links