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Introduction to Biology Learning App Download | Class 9 Biology App (Android & iOS)

Class 9 Biology MCQ: Complete Course

Introduction to Biology MCQ App Download & PDF e-Book | 1476

MCQ: 1476

The organ system by which the digestion process is carried is called

  1. endoplasmic system
  2. digestive system
  3. muscular system
  4. molecular system

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