Earthworms belongs to which of the following phyla?

Correct option is B

Correct Answer: (b)
Explanation:
· Earthworms belong to the phylum Annelida.
· Members of Annelida are characterized by their metamerically segmented body (external and internal segmentation) and the presence of a true coelom (body cavity).
Information Booster:
· The phylum Annelida includes segmented worms in terrestrial, freshwater, and marine environments, such as earthworms ( Pheretima), leeches ( Hirudinaria), and Nereis.
· Earthworms are vital for agriculture as they help in vermicomposting, improving soil structure, aeration, and nutrient content.
Additional Knowledge:
· (a) Platyhelminthes: These are flatworms (e.g., tapeworm), which are generally soft-bodied and lack a true coelom (acoelomates).
· (c) Porifera: These are the sponges, characterized by a cellular level of organisation and a unique water canal system.
· (d) Arthropods: This is the largest phylum, characterized by jointed appendages and a hard, chitinous exoskeleton (e.g., insects, crustaceans).
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