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NEET Biology Biological Classification And System Of Classification / जैविक वर्गीकरण और वर्गीकरण की प्रणाली Question Bank Photosynthetic and Consumer Protists

  • question_answer
    Diatom frustule/shell is made of      [BHU 1998; Manipal 2001]

    A)            Silica                                         

    B)            Lime

    C)            Magnesium carbonate            

    D)            Any of the above

    Correct Answer: A

    Solution :

               Frustule of diatoms is made of silica, cellulose and pectic compounds.


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