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9th Class Science Diversity in Living Organisms Question Bank Diversity in Living Organisms

  • question_answer
    Which of the following phyla includes diploblastic, aquatic animals with tissue grade of organization?

    A) Protozoa           

    B)        Porifera

    C) Cnidaria             

    D)        Helminthes

    Correct Answer: C

    Solution :

    Cnidarians are aquatic, diploblasts, having only two tissue layers, called the epidermis and gastrodermis, which are separated by a layer of gelatinous material called the mesoglea.


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