Which group of Protists are responsible for the formation of diatomaceous earth?
A
Chrysophytes
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B
Dinoflagellates
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C
Euglenoids
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D
Slime Moulds
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Solution
The correct option is A Chrysophytes The cell walls of diatoms are responsible for the formation of diatomaceous earth. Diatoms belong to chrysophytes under Kingdom Protista. The walls of diatoms are embedded with silica and thus the walls are indestructible. They leave behind large amounts of cell wall deposits in their habitat and this accumulation over billions of years results in ‘diatomaceous earth’.