The main excretory product of earthworms is urea. They excrete some amount of ammonia also. Excretory organs of earthworms are coiled tubules known as nephridia.
- Are Earthworms Ammonotelic?
- Which Is Uricotelic: Earthworm, Cockroach, Frog Or Humans?
- How Do Earthworms Return Nutrients to the Ecosystem?
- Is Earthworm a Decomposer?
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