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STD 11 - 2. Biology classification — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYSTD 11 - 2. Biology classification1 Mark
MCQ
Diatom frustule/shell is made of
  • ✓
    Silica
  • B
    Lime
  • C
    Magnesium carbonate
  • D
    Any of the above
✓

Answer

Correct option: A.
Silica
a
(a) Frustule of diatoms is made of silica, cellulose and pectic compounds.

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