contestada

Air from the outside environment first enters the respiratory system through the .....

Nostrils
Trachea
Nasal cavities
Pharynx

Respuesta :

mustafaahi6otazbl
The key to a lot of health related questions is to not overthink it. Air first enters the body via two major orifices (actually three) the Nostrils and the Mouth.
elenacorsan93

Answer:

Nostrils

Explanation:

The nostrils are the external orifices in the nose that lead to the nasal cavity, they serve as the link between the enviorenment and the respiratory system.

I hope you find this information useful and interesting! Good luck!