worm
Sign in to savethumb|Lumbricus terrestris, an earthworm thumb|White tentacles of Loimia medusa, a spaghetti worm
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A worm is a long, soft-bodied animal without bones or legs that lives in soil, water, or as a parasite in other organisms. Worms matter because they play important roles in ecosystems—for example, earthworms help break down soil and improve its quality for plants—and some types are studied by scientists to better understand biology and disease.
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Article
6 sectionsContents
- History
- Informal grouping
- Society and culture
- See also
- Explanatory notes
- References
thumb|Lumbricus terrestris, an earthworm thumb|White tentacles of Loimia medusa, a spaghetti worm
Worms are many different distantly related bilateral animals that typically have a long cylindrical tube-like body, no limbs, and usually no eyes.