Explanation:
The interior of the lungs is made up of spongy tissues containing many capillaries and around 30 million tiny sacs known as alveoli.
The alveoli are cup-shaped structures found at the end of the terminal bronchioles and surrounded by capillaries.
Something people think is true is C.Belief
It will ultimately affect every branch of the food chain, as protists are the basis of it all.
