The spinal cord begins at the occipital bone and extends down to the space between the first and second lumbar vertebrae; it does not extend the entire length of the vertebral column.
Earthworms are invertebrates, lacking a skeleton. To support and shape the body, they are filled with coelomic fluid. Earthworms sometimes appear to have a belt or saddle around their bodies; this is a clitelum, a structure containing maturing eggs.
Report Abuse. Earthworms are hermaphrodite but need a mate to reproduce. However one animal comes to mind that is hermaphrodite but doesn't need a mate to reproduce is the parasite called the tapeworm. I hope this and the links below will help you out. Source(s): http://en.wikipedia.org/wiki/Earthworm#R... http://en.wikipedia.org/wiki/Tapeworm#An...