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Select the wrong statement.

  1. A
    Diatoms are microscopic and float passively in water.
  2. B
    The walls of diatoms are easily destructible.
  3. C
    'Diatomaceous earth' is formed by the cell walls of diatoms.
  4. D
    Diatoms are chief producers in the oceans.

Solution & Step-by-step Explanation

Diatoms have cell walls embedded with silica, forming two thin overlapping shells (frustules) like a soapbox. These walls are indestructible. After death, they accumulate to form "diatomaceous earth".

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Try it yourself before checking the explanation above.

Select the wrong statement.
A
Diatoms are microscopic and float passively in water.
B
The walls of diatoms are easily destructible.
C
'Diatomaceous earth' is formed by the cell walls of diatoms.
D
Diatoms are chief producers in the oceans.

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