দ্বিনিষেক (Double Fertilization) কোন ধরনের উদ্ভিদের প্রধান বৈশিষ্ট্য?

A গুপ্তবীজী

B ব্যক্তবীজী

C ফার্ন

D শৈবাল

Correct Answer & Explanation

Option A

Option A is the correct answer according to official curriculum guidelines.

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