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Class 11BiologyDigestion and AbsorptionDigestive system
Easy

The hardest substance of the vertebrate body is

  • A
    Keratin
  • B
    Enamel
  • C
    Dentine
  • D
    Chondrin
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Class 11 Questions

Class 11

Biology Questions

Chapter

Digestion and Absorption

Subtopic

Digestive system

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