What is the charecteristics of an alveolus
1 answer:
- Each alveolus is cup-shaped with very thin walls.
- It’s surrounded by networks of blood vessels called capillaries that also have thin walls.
- The oxygen you breathe in diffuses through the alveoli and the capillaries into the blood.
- The carbon dioxide you breathe out is diffused from the capillaries to the alveoli, up the bronchial tree and out your mouth.
- The alveoli are just one cell in thickness, which allows the gas exchange of respiration to take place rapidly.
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Nitrogen is the only one there that is not a greenhouse gas
1) Use the map to describe the motion of the plates at this boundary and the age of the rocks along each
side of the ridge.
2) Explain the importance of this discovery to the current theory of plate tectonics.
Answer:
They transform dead organisms into organic matter.
Explanation:
It stays connected to the centromere
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