Answer:
Sample response
Body muscle mass decreases. Bone density and viscera reduces and bones become more porous. Hormonal changes occur. Cartilage between joints like knees and hips reduces and lubrication decreases causing stiffness of joints and slowed movements. When all this happens, physical changes through our body matures into an adult body capable of many more things. It is initiated by hormonal signals from the brain to the gonads.
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