Question

In human beings, nasal cavity, larynx, trachea, and lungs combine to form:

• A. Excretory system
• B. Reproductive system
• C. Digestive system
• D. Respiratory system \bigskip

Hint:

The primary function of the respiratory system is to supply oxygen to the blood and remove carbon dioxide.

Answer 1

The Correct Option is D

The respiratory system consists of organs like the nasal cavity, larynx, trachea, and lungs, which help in breathing and gas exchange.