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B
Dinophyceae
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C
Rhodophyceae
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D
Bacillariophyceae
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Solution
The correct option is B Dinophyceae Dinoflagellates or dinophyceae are called fire algae because some forms of these protists are bioluminescent, meaning that they are living organisms that produce and emit light. Early botanists classified dinoflagellates as a separate division of algae, which they named Pyrrophyta, after the Greek word pyrr(h)os, meaning fire.