Locomotory organ of earthworm is _______________.
Please refer to the following link.
https://www.meritnation.com/ask-answer/question/can-you-explain-the-movement-of-the-earthworm-more-clearly/body-movements/6165666
https://www.meritnation.com/ask-answer/question/can-you-explain-the-movement-of-the-earthworm-more-clearly/body-movements/6165666