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Question
Biology
Hardest substance in plant kingdom is:
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Q. Hardest substance in plant kingdom is:
JIPMER
JIPMER 2019
A
Sepal
B
Corolla
C
Sporopollenin
D
Anther
Solution:
Sporopollenin is the most resistant material in the plant kingdom. It is the chemical which forms the exine layer of the pollen grain.