In children the bones are more flexible and brittle because their bones have

Old people are, more liable to fracture of their bones because

Old people are more liable to fracture of their bones because

Birds have bones which are

Birds have bones which are

Birds have bones which are

Birds have bones which are

X: Birds can fly because their bones are hollow and light. Y: The bones of the hind limbs are meant for walking and perching.

which bones are single bones ?

Possible cause of brittle bones with ageing may be

Bones of old persons are brittle and fracture more readily occur because they contain more