Oxygen and carbon dioxide travels to and from tiny air sacs in the lungs, through the walls of the capillaries, into the blood. Blood leaves the heart through the pulmonic valve, into the pulmonary artery and to the lungs. Blood leaves the heart through the aortic valve, into the aorta and to the body.
Talk in English I don’t understand
Vitaim b1. was the found in 1910
Alfred Wegener is the Father of plate tectonic technology.
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