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Because they are the lining of the lungs that begin the process of taking oxygen out of the air and into the blood stream. They are the parts that actually coe into contact with the "air" and are therefore called the functional part of the lungs.
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Historical geologists divide the history of the earth into four unites of the time called?
Historical geologists divide the history of the earth into for units of time called Eras. The first one that began when the earth formed---- 4.6 billion years ago---- was called the Precambrian Time. The next--- after the PT--- was known as the Paleozoic Era. The third--- when dinos roamed--- was called the Mesozoic Era. The on we live in is called the Cenozoic era.
What are 2 common units of measuring dosage for an animal?
Two common units of measuring dosage for an animal are milligrams and milliliters.
What is the smallest unit in the hierarchy of the taxonomic units?
Species Species
How many 1978 Trans Am Y88 made?
For the 1978 Trans Am Y88 S.E. L80, the number of units produced was 880. For the 1978 Y88 S.E. W72, the number of units produced was 7,786.
What does the word adapted mean?
It means adjusted to the change something has been introduced too.
What system do the aveoli belong to?
Alveoli are the smallest functional units of the lungs. Therefore, they belong to the respiratory system.
What are the main structural and functional units of the lungs?
Actually, the structure of the lunge is make up Visceral pleura, Parietal pleura, and Pleural cavity
Functional units of lungs?
Alveoli
What are the functional units of the units called?
They are genes.
What compose of alveoli arranged in grape-like clusters?
The alveoli (singular, alveolus) are the functional units of the lungs of mammals.
What compose of alveoli arranged in grape like clusters?
The alveoli (singular, alveolus) are the functional units of the lungs of mammals.
What are the functional units of hereditary called?
Functional units of heredity are called genes. Genes are segments of DNA that contain instructions for building proteins, which determine an individual's traits and characteristics.
Flow of air from the nasal cavaties to the aveoli?
When we inhale air from the environment first enters the nasal cavity.Then it enters wind pipe to bronchi to bronchi-oles to alveoli.Alveoli are the terminal units of the lungs.
What is composed of alveoli arranged in grape like cluster?
The alveoli (singular, alveolus) are the functional units of the lungs of mammals.
All animals are organized into structural and functional units called what?
cell
Why is cell called the unity of life?
for this reason ceall are called structural and functional units of life
A typical enterprise consists of hundreds of individual operating entities called?
Functional Units
