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In flowers pollinated by insects, the pollen grains are

  • A.Smooth and dry
  • B.Rough and sticky
  • C.Rough and dry
  • D.Large in size

Answer: B

Insect-pollinated flowers have pollen that is rough and sticky, often with spines or a sticky coating, so it clings to a visiting insect.

Wind-pollinated pollen is the opposite: small, smooth, dry and light, produced in enormous quantity so that a little of it reaches a stigma by chance.

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