Question

which of the following bones is not part of the appendicular skeleton?
a scapula
b sacrum
c tibia
d coxal bones
e metacarpals

Explanation:

The appendicular skeleton consists of the bones of the limbs and the pectoral and pelvic girdles. The scapula is part of the pectoral girdle, the tibia is a leg bone, the coxal bones are part of the pelvic girdle, and the metacarpals are hand bones. The sacrum is part of the axial skeleton (which includes the skull, vertebral column, and rib cage).

Answer:

B. sacrum