The brand's famously low prices. Groceries at Aldi are shockingly cheaper than those at Wal-Mart, according to a study by Cheapism. They're also cheaper than those at industry darling Trader Joe's. Aldi employs a few smart strategies to sell groceries for so cheap. You won't find many brand names at Aldi.
Gas Exchange Between Alveolar Spaces and Capillaries. The function of the respiratory system is to exchange two gases: oxygen and carbon dioxide. The exchange takes place in the millions of alveoli in the lungs and the capillaries that envelop them. As shown below, inhaled oxygen moves from the alveoli to the blood in the capillaries, and carbon dioxide moves from the blood in the capillaries to the air in the alveoli.
When the lungs fill with air, oxygen diffuses through the alveoli walls from the inhaled air into blood cells, exchanging with carbon dioxide, which diffuses out to the inhaled air from the blood cells.osted on. (Answer #1). Oxygen is absorbed in the lungs and transported all over the body by blood; when the blood releases its oxygen, it absorbs carbon dioxide (waste) and transports that back to the lungs, where it is expelled. This process is called respiration.