Question

what would happen if cartilage of external ear is replaced with bone​

Answer 1

SIMPLE

The skin of the ear canal is very sensitive to pain and pressure. Under the skin the outer one third of the canal is cartilage and inner two thirds is bone

Eventually, all the cartilage is replaced by bone. Thus, the cartilage tissue serves as a model for the bone that follows. The skeletal components of the vertebral column, the pelvis, and the limbs are first formed of cartilage and later become bone.