Question

the two external openings into the nasal cavity are called the: o cilia o sinuses o nares o nasal septum

Explanation:

The nares are the two external openings into the nasal cavity. Cilia are tiny hair - like structures in the nasal cavity, sinuses are air - filled cavities in the skull, and the nasal septum is the wall dividing the nasal cavity into two halves.

Answer:

C. nares