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  • Close up photos of an Earthworm’s prostomium and mouth.
    Rights: Giles san Martin Published 12 June 2012 Size: 30 KB Referencing Hub media

    The first segment on the earthworm’s anterior holds the prostomium and mouth. The prostomium, resembling a lip, is in front of the mouth. Earthworms use their pharynx to pull food into their mouths.

    Acknowledgement: Giles san Martin

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