Many small generates more surface area than one big of the same volume.
cuz its goofy!
villi in the small intestine, alveoli in the lungs, folded inner membrane of the chloroplast and mitochondria, having numerous small cells instead of fewer large cells
Alveoli
"alveoli"
In the lungs are small air sacs called alveoli. These alveoli are covered with blood capillaries. Oxygen and Carbon Dioxide diffuse through the alveolar capillary membrane. Oxygen diffuses from the alveoli to the blood capillary and carbon dioxide diffuses from the capillary to the alveoli and you breath it out of your body.
Negative pressure causes oxygen to enter the alveoli. Air is pulled into the lungs as the lungs expand. The alveoli are membranes of small balloon-like structures attached to the branches of the bronchial passages.
It is giant. If it was small, it would be a dwarf planet instead of a planet.
Alveoli (pulmonis) or just alveoli.
The humorus
The tubes that connect the bronchi with the alveoli are the bronchioles.
Alveoli
The alveoli are small sacs within the lungs where gas exchange occurs. They are located at the ends of bronchiole branches.
Alveoli
villi in the small intestine, alveoli in the lungs, folded inner membrane of the chloroplast and mitochondria, having numerous small cells instead of fewer large cells
The tiny blood vessels that surround the alveoli arecalled alveolar capillaries
Alveolar means pertaining the the alveolus (plural alveoli), the small air sacs in the lungs.
these small sacs are known as alveoli
alveoli