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.
Answer: While earthworms do not have lungs, like you, they must have oxygen to live. You have lungs that fill will air when you inhale. In your lungs, oxygen from the air is mixed with blood, and then the blo od carries oxygen to all the parts of your body.Instead of lungs, earthworms have a thin permeable skin through which oxygen in air passes through.The oxygen does not directly pass through the earthwormâs thin outer skin.n your lungs, oxygen from the air is mixed with blood, and then the blo od carries oxygen to all the parts of your body. Instead of lungs, earthworms have a thin permeable skin through which oxygen in air passes through. The oxygen does not directly pass through the earthwormâs thin outer skin.