Chapter: 17 Brething and Exchange of Gases This Is Solution of 17th Chapter of NCERT Biology

Chapter: 18 Body Fluids and Circulation This Is Solution of 18th Chapter of NCERT Biology

Chapter: 19 Excretory Products and Their Elimination This Is Solution of 19th Chapter of NCERT Bi...

Chapter: 20 Locomotion and Movement This Is Solution of 20th Chapter of NCERT Biology