AP 9th Class Biology Study Material
- Chapter 1 Cell its Structure and Functions
- Chapter 2 Plant Tissues
- Chapter 3 Animal Tissues
- Chapter 4 Movement of Materials Across the Cell Membrane
- Chapter 5 Diversity in Living Organism
- Chapter 6 Sense Organs
- Chapter 7 Animal Behaviour
- Chapter 8 Challenges in Improving Agricultural Products
- Chapter 9 Adaptations in Different Ecosystems
- Chapter 10 Soil Pollution
- Chapter 11 Bio Geo Chemical Cycles