Question

Birds need to keep their body light to he
in eflying. Hence, they know presence of
on one side. How their
skeleton helps in reducing
reducing their weight?​

Answer 1

Explanation:

As being hollow allows the birds to be light in weight and fly easily in the sky. Their shape of bone also helps in providing strength to the skeletal system of birds. As they fly they need to be light but very strong in terms of structure.