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What is the function of the raphe in diatoms?

User Brocco
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Final answer:

The function of the raphe in diatoms is to allow them to attach to surfaces or propel themselves in one direction.

Step-by-step explanation:

The function of the raphe in diatoms is to allow them to attach to surfaces or propel themselves in one direction. The raphe is a slit in the silica shell of diatoms, and by expelling a stream of mucopolysaccharides from the raphe, diatoms can create a sticky substance that helps them adhere to surfaces. This ability to attach to surfaces is especially important for diatoms in environments with strong currents.

User Kuby
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