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The cell wall is composed of two thin overlapping shells which fit together like a soap case inA. desmidsB. Diatoms and dinofiagellatesC. dinoflagellatesD. slime moulds. |
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Answer» Correct Answer - A The body of diatoms is covered by a transparent siliceous shell (silica deposited in cell wall) known as frustule. The frustule is made of two valves, epitheca and hypotheca. The two valves fit together like a soap box. |
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