Identify the statement that suits dinoflagellates.Immersive Reader Cell wall is embedded with silica Have pseudopodia Cell wall has stiff cellulose plates on the outer surface Form aggregations under suitable conditions
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Diatoms are unicellular algae (eukaryotes) placed under kingdom Protista and serve as main producers in oceans. The cell of diatoms is surrounded by the cell wall, deposited with silica, called as frustules which are composed of two overlapping halves (the epitheca and the hypotheca). Shells of diatoms are highly resistant to decomposition due to the presence of silica and are deposited in ocean beds leading to the formation of the diatomaceous earth. The gliding movement of floating diatoms is a passive process, facilitated by secretion of slimy material.
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