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Q: Which of these is unique to flowering plants?

  • 1
    double fertilization
  • 2
    an embryo surrounded by nutritive tissue
  • 3
    haploid gametophytes
  • 4
    pollen production
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Answer : 1. "double fertilization"
Explanation :

Answer: A) double fertilization Explanation: In flowering plants one sperm nucleus fertilizes the egg and the other sperm nucleus fuses with two other nuclei found within the ovule, thus forming triploid endosperm.   Hence, double fertilization is unique to flowering plants.

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