Which is responsible for the production of RBC?

Which one of the following is an example for synovial joint ?

The outer strong layer which covers the bone is called

Earthworms move with the help of body muscles and

Which is the locomotory organ of fish ?

How many vertebranes are present in Lumbar region ?

Turning the sole of the foot outwards are called as

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

Synovial fluid is secreted by

The largest bone in human body is