Movement of oxygen into the blood Diffusion of oxygen into the blood takes place at the alveoli (air sacs). The air in the alveoli contains a lot of oxygen. The alveoli are very close to capillaries, which are small blood vessels. The blood in the capillaries has very little oxygen and has a lot of carbon dioxide.The walls of both the alveoli and the capillaries are very thin and oxygen and carbon dioxide molecules can move through these walls.Oxygen and carbon dioxide move from where there is a large concentration to where there is a lower concentration. This movement is called diffusion.Oxygen diffuses from the alveoli, into the blood in the capillaries.Similarly, carbon dioxide from the blood moves out of the capillaries into the alveoli.his movement is called diffusion. Oxygen diffuses from the alveoli, into the blood in the capillaries. Similarly, carbon dioxide from the blood moves out of the capillaries into the alveoli.
The average adult bearded dragon gets 18 inches long (1 1/2 feet) . There are different species of bearded dragon that can get up to 24 inches (2 feet).   I have 5 adult dr â¦ agons. The smallest is about 14 inches, the largest is about 22 inches.
Genus/species: Pogona vitticeps. Description. Inland bearded dragons are 13 to 24 inches (33 to 61 cm) long, including the tail. They are appropriately named bearded dragons because of their beard, an expandable dewlap with spiky scales.They have a broad, triangular head, round bodies, stout legs, and robust tails.escription. Inland bearded dragons are 13 to 24 inches (33 to 61 cm) long, including the tail. They are appropriately named bearded dragons because of their beard, an expandable dewlap with spiky scales. They have a broad, triangular head, round bodies, stout legs, and robust tails.