Explanation:
What happens during gas exchange in the alveoli?
These are called alveoli. They inflate when a person inhales and deflate when a person exhales. During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs.
What is the role of alveoli in gas exchange?
The alveoli are where the lungs and the blood exchange oxygen and carbon dioxide during the process of breathing in and breathing out. Oxygen breathed in from the air passes through the alveoli and into the blood and travels to the tissues throughout the body.
Unit Cell is the basic <span>repeating structural unit of a crystalline solid .</span>
I pick but I'm not sure about it though 1and3
4.The other light bulb will stay on and glow brightly.
Answer:
The answer is "3.81041978"
Explanation:
In 1860 
