anatomy WormWatch. Earthworms use the prostomium to see their environment, as earthworms have no eyes, ears, nose or hands. They depend on the prostomium and skin to help it feel their way through the soil. As the earthworm.
Earthworm Observation: External Anatomy Click for full-size pdf 1. Find the anterior (front) end of the earthworm by locating the fleshy bump over its mouth, called the.
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