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The organism is a diatom. Diatoms have two thin, overlapping wall layers embedded with silica. Their indestructible wall deposits accumulate over long periods and form diatomaceous earth.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Protista - Chrysophytes and Dinoflagellates
The organism is a diatom. Diatoms have two overlapping silica-containing wall layers and form part of the plankton. Their accumulated, indestructible wall deposits form diatomaceous earth.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Protista - Chrysophytes and Dinoflagellates
Most dinoflagellates possess two differently oriented flagella: one lies longitudinally and the other transversely in a furrow between the cellulose plates. Euglenoids instead have a flexible pellicle and two flagella described as one short and one long.
Ref: NCERT Class 11 Biology Chapter 2: Biological Classification Protista - Chrysophytes and Dinoflagellates
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