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Question
Which one of the following is a characteristic feature of chrysophytes?
Options:
A .  They are parasitic forms which cause disease in animals
B .  They have a protein rich layer called pellicle
C .  They have indestructible wall layer deposited with silica
D .  They are commonly called dinoflagellates
Answer: Option C
:
C
Inchrsophytes,the cell walls form two thin overlapping shells, which fit together as in a soap box. The walls are embedded with silica and thus, the walls are indestructible.

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