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Why pollen grains are conserved for a long time?

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in Pollination, Fertilization & Development of Endosperm and Embryo by (46.2k points)

Why pollen grains are conserved for a long time?

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  • The wall of the pollen grain has deposition of a complex compound known as sporopollenin. 
  • This substance is waterproof, resistant to microbial decay, and is very stiff.
  • This hardshell ensures that the tender cell inside has a strong chance of survival.
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