Failing to repair the cause of the check engine light will cause it to return after resetting it. Tools required: 1  Handheld Scanner. 2  Locate the OBD II port. 3  Look under the dashboard on your Volkswagen Jetta. 4  Bend down and look under the dashboard to better locate the OBD II port on your Volkswagen Jetta.
The nerve cord in an earthworm performs the same task as the nervous system of any animal. The function of the nervous system is to bring sensory information to the brain, where it is processed. Then, the brain sends signals to the body via the nervous system and those signals cause the animal to move.t's function is simple; â¦ it's the nerves in the worm! If dissected, the nerve cord looks like a thin white line on the ventral (belly) side on the inside of the skin.
Earthworms breathe through their moist skin. Gas exchange takes  place directly there.   The Earthworm's body has to stay moist & slimy because  it allows oxygen to be dâ¦iffused from air through the skin. This  allows the worm breath because they do not have lungs.   They do not breathe as we do- they take in oxygen directly through  their skin, and give off carbon dioxide the same way.   They use their skin [integument] to support the process of gaseous  exchange known as transpiration.   Through their pores.