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  • ICAR and TNAU E-Course Summarized

    Summarized Notes
  • Scorpion respires through?

    Question: Scorpion respires through?

    Options:

    a. Book lungs
    b. Cuticle
    c. Green glands
    d. Trachea

    ✅Explanation:
    Scorpions, like other arachnids (spiders, ticks, and mites), breathe through book lungs.

    📌Other Options:
    • Cuticle: While the cuticle, the hard outer shell of the scorpion, provides protection, it is not permeable to gas and cannot be used for respiration.
    • Green glands: These are excretory organs responsible for removing waste products from the body and not involved in respiration.
    • Trachea: These are air-filled tubes found in insects, not scorpions. Scorpions lack a tracheal system for respiration.

    🛑 Related Terminology:
    • Hemolymph: The circulatory fluid in invertebrates like scorpions, analogous to blood in vertebrates.

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