Bone and muscle mass differ because of age, gender, nutrition, genetics and physical activity. Bones provide support and protection, while muscles help movement and posture. Together, they contribute significantly to total body weight and body strength.
Discuss why do bone and muscle mass differ between individuals and how do they contribute to the overall body weight?
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Bone and muscle mass vary among individuals due to differences in age, gender, diet, exercise, hormones and genetics. Regular physical activity increases muscle strength and bone density. Bones provide structure, support and protection to organs, while muscles enable movement and maintain posture. Together, bones and muscles form a major part of body weight and contribute to fitness and mobility.
For more NCERT Solutions of Class 9 Science Exploration Chapter 3 Tissues in Action Question Answer (2026-27)
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