ZoologySelect the option that correctly matches a characteristic feature with the group of three animals.

Select the option that correctly matches a characteristic feature with the group of three animals.

  1. A

    Excretion through Malpighian tubules – Limulus, Loligo, Locusta

  2. B

    Parapodia help in swimming – Nereis, Pheretima, Hirudinaria

  3. C

    Rasping organ called radula – Pila, Octopus, Sepia

  4. D

    Comb plates for locomotion – Pleurobrachia, Pennatula, Ctenoplana

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    Solution:

    The buccal cavity of molluscs contains a file-like rasping organ called radula in molluscs (e.g., Pila, Octopus, Sepia). The excretory organs of Limulus are coxal glands, and those of Loligo are metanephridia. Parapodia are present only in Nereis but not in Pheretima and Hirudinaria. Comb plates are present in ctenophores (e.g., Pleurobrachia, Ctenoplana) but not in cnidarians (e.g., Pennatula).

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