Questions

The axial skeleton is the part of the skeleton that consists of the bones of the head and trunk of a vertebrate. In the human skeleton, it consists of 80 bones and is composed of six parts; the skull bones, the ossicles of the middle ear, the hyoid bone, the rib cage, sternum and the vertebral column.

Bones of shoulder, thigh and foot are the part of appendicular skeleton. 

Hence, Vertebral column is the part of axial skeleton.

New York City Subway has 468 stations (277 of which are under ground) in a network covering 370 km (230 miles)

OSHA's mission is to protect the safety and health of America's workers. When the employer receives an OSHA citation, it must be posted for 3 days or until the violation is fixed.

Sound waves cannot be transmitted through vacuum. 

The correct order of evolutionary history from the above given options is jellyfish, reptiles, mammals.