The alveoli are small spherical structures and exist in bunches just like a bunch of grapes. They are usually red in color because they provide the interface for air ... www.ask.com |
Why do you look like what you look like? The reason a person looks the way they do is because of genes from the mother and father. Do you look like what you ... wiki.answers.com |
The alveoli are grouped together like a lot of interlinked caves, and this allows the gas exchange into lungs. www.curoservice.com |