Saved Bookmarks
| 1. |
A very large number of alveoli is present in lungs which are covered over by capillary network . give secientific reasons |
|
Answer» Explanation: As it MOVES through blood VESSELS (capillaries) in the alveoli WALLS, your blood takes the oxygen from the alveoli and gives off carbon dioxide to the alveoli. ... This large SURFACE area is necessary to process the HUGE amounts of air involved in breathing and getting oxygen to your lungs. |
|