Class 9 Courses

Download Class 9 Biology MCQs App | Passage of Molecules and Cells MCQs Apps (iOS & Android)

Class 9 Biology MCQs: Complete Course

Passage of Molecules and Cells MCQs App Download & PDF e-Book | 818

MCQ: 818

The diffusion process is useful for gaseous exchange in

  1. capillaries and arteries
  2. lungs and gills
  3. blood cells
  4. blood cells and capillaries

Class 9 Biology App & e-Book Tests PDF Download

Passage of Molecules and Cells Study App: Free iOS & Android Apps

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Passage of Molecules and Cells Apps (Android & iOS)

Passage of Molecules and Cells App

9th Grade Biology Apps (Android & iOS)

9th Grade Biology App

Phylum Apps (Android & iOS)

Phylum App

Cell Biology Apps (Android & iOS)

Cell Biology App