Bacteria responsible for initiation of caries is ________?

The growth and development in the craniofacial region occurs in following order________?

A fatty acid that is not synthesized in man is________?

When osteoblast lay new bone from outside to inside in a osteon, the active formation area is called________?

Outer and inner enamel epithelium first seen in________?

Same or closely related antigens present in different biological species are known as________?