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An earthworm is basically a long tube composed of many segments. At the front is a simple brain, but there are no eyes, ears or nose. However, the many nerve cells on the surface of the worm can detect light, vibrations and the roughness of the material around it.
Te whakamahi i tēnei tūemi
Te Ara - The Encyclopedia of New Zealand
Source: Bobbie Kalman, The life cycle of an earthworm. New York: Crabtree, 2004
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