First slide

Kingdom Protista

Question

Select the wrong statement.

Easy

A

The walls of diatoms are easily destructible.
B

'Diatomaceous earth' is formed by the cell walls of diatoms.
C

Diatoms are chief producers in the oceans.
D

Diatoms are microscopic and float passively in water.

Solution

Walls of Diatoms is indestructible due to impregnation of silica in cellulose. Diatomaceous earth is formed by deposition of frustules of dead diatoms. They are chief producers of organic world because they are dominant producers of oceans. They lack flagella and are phytoplanktons so passively float on water surface.

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