প্যারামাইলন কোন শ্রেণির শৈবালের সঞ্চিত খাদ্য ?

The correct answer is Pyrrophyta, which refers to a group of algae commonly known as dinoflagellates. They are unique among algae because they store their food mainly as paramylon, a type of polysaccharide. This sets them apart from other algal groups.

Here’s a brief description of the other options for clarity:

    
• Chlorophyta: These are green algae that primarily store food as starch.
    
• Phaeophyta: Known as brown algae, they also store food primarily as laminarin and mannitol.
    
• Rhodophyta: This group, known as red algae, stores food mainly as floridean starch.

Thus, the selection of Pyrrophyta is correct because they specifically utilize paramylon as their food reserve.

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