Question

XIV. Answer the following questions.
31. How is oxygen rich blood from the lungs supplied to all the cells in the human
body?​

Answer 1

Answer:

The oxygen in inhaled air passes across the thin lining of the air sacs and into the blood vessels. This is known as diffusion. The oxygen in the blood is then carried around the body in the bloodstream, reaching every cell. When oxygen passes into the bloodstream, carbon dioxide leaves it.

Answer 2

Answer:

The oxygenated blood gets supplied to the body through blood.

hope it's correct