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Segmented worms
Worms belonging to the phylum Annelida, with soft bodies divided into segments and distinct heads. Includes leeches, earthworms, and marine worms.
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Invertebrate zoology
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Insects, arachnids, & annelids
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Website for links to USGS and non-USGS websites with information on insects, arachnids, and annelids suitable for students and arranged by grade levels.
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