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.
The earthworm takes in a mixture of soil and organic matter through its mouth, which is the beginning of the digestive tract. The mixture enters the pharynx, which is located in segments 1 6. The esophagus, in segments 6 13, acts as a passageway between the pharynx and the crop. The crop stores food temporarily. The mixture that the earthworm ingests is ground up in the gizzard. In the intestine, which extends over two-thirds of the body length, digestion and absorption take place. Soil particles and undigested organic matter pass out of the worm through the rectum and anus.