Question

module test

1. which of the following is part of the respiratory system?

vesicle
trachea
aorta
atrium

Explanation:

The trachea, also known as the windpipe, is a key part of the respiratory system that allows air to pass to and from the lungs. Vesicles are small membrane - bound sacs in cells, the aorta is part of the circulatory system, and atrium refers to chambers in the heart (cardiovascular system).

Answer:

Trachea