An aquatic dioecious annelid is (1)Nereis (2)Pheretima (3)Hirudinaria (4)Ascaris
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Answer:
answer is option 1) nereis
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Answer:
• The correct option is option 1.) Nereis.
Explanation:
• Phylum Annelida is the phylum in which tribloblastic eucoelomate organisms are kept in.
• Out of these mentioned animals only Ascaries does not belong to phylum Annelida. It belongs to phylum Aschelminthes, so this cannot be the correct answer.
• Pheretima is Earthworm which does belong to the phylum Annelida but it is terrestrial and monoecious.
• Hirudinaria is leech, which again belongs to the phylum Annelida and it aquatic but it is monoecious.
• Out of the given organisms, only Neries belongs to the phylum Annelida which aquatic and also dioecious. Therefore it is the correct answer.
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