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Which of the following types of algae would have rigid cell walls composed of silica?

a. paramecium
b. euglena
c. diatoms
d. spyrogyra

User RaceBase
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1 Answer

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c. It is among the most known form of phytoplankton and are usually unicellular!
You can find them arranging themselves in shapes by making colonies.
User Jaynie
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