How many vertebranes are present in Lumbar region ?

How many bones are present in human skeleton ?

11^th and 12^th ribs are called as

How many ribs are present in human body ?

The cells responsible for bone formation are

Earthworms move with the help of body muscles and

The three pairs of ribs which are not directly attached to sternum are called

Which is responsible for the production of RBC?

The first seven pairs of ribs which are attached to the sternum are called as

'S' shaped movement in snake is known as