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What is the nature of cell-walls in diat...

What is the nature of cell-walls in diatoms?

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The cell wall of diatoms is chiefly composed impregnated with glass-like slica. It shows sculpturings and ornamentations. The cell wall is composed of two overlapping halves (or theca) that fit together like two parts of a soap box. The upper half is called epitheca and the lower half is called hypotheca.
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