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Class 12BiologyHuman Health and DiseaseAllergies
Medium

Many people suffer from which system-related problem due to pollen grains of many species?

  • A
    Digestive system
  • B
    Excretory system
  • C
    Nervous system
  • D
    Respiratory system
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12

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Class 12 Questions

Class 12

Biology Questions

Chapter

Human Health and Disease

Subtopic

Allergies

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