Question

The image shows a human respiratory system A structure, labelled as ‘A’ in the image is forming the floor of the chest cavity. What is this structure referred as? (a) Lungs (b) Diaphragm (c) Nasal cavity (d) Chest cavity​

Answer 1

B. Diaphragm

Hope it helps<3
Pls mark as the brainliest if it does

Answer 2

Answer:

diaphragm

hope it helps