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About the Phylum Annelida.

Biology

ScanSolve AI Answer

Step-by-step solution

4 steps
  1. Identify the phylum in question.

    The question asks about the Phylum Annelida.

  2. Recall the excretory organs of Annelids.

    Annelids, such as earthworms, primarily use nephridia for excretion and osmoregulation.

  3. Evaluate the given options.

    • A. Flame cells are characteristic of Platyhelminthes (flatworms).
    • B. Nephridiophore is the external opening of a nephridium, not the organ itself.
    • C. Nephridia are the tubular excretory organs found in many invertebrates, including annelids.
    • D. Parapodia are fleshy appendages used for locomotion and respiration in some annelids (polychaetes), not excretion.
  4. Select the correct option.

    Based on the function, nephridia are the main excretory organs of Annelida.

    The final answer is C\boxed{\text{C}}

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