The lungs are the primary organs responsible for extracting oxygen from the air you breathe. When you inhale, oxygen from the air is transferred into the bloodstream through tiny air sacs in the lungs called alveoli. These alveoli exchange oxygen for carbon dioxide, which is then exhaled out of the body.
Alligators are air breathers. They inhale and exhale through their nostrils. Their lungs absorb oxygen from the air that they inhale.
nose or mouth
trachea
The oxygen from the air they inhale is distributed to the body parts through the blood stream. The blood picks up carbon dioxide and it is exhaled into the environment.
i can inhale air
Air enters through the mouth or nose and travels through the trachea then it flows through the large tubes called what?
exhale
The air flows into the furnace through the return ducts, gets heated by the furnace, and then flows out through the supply ducts to heat the home.
The air flows into the furnace through the return ducts, gets heated by the furnace, and then flows out through the supply ducts into the rooms of the house.
It flows downwards because it is cold and cold air sinkse. The most important reason why it flows downwards is that dry ice is made of CO2 / carbon dioxide which = 1.5 times heavier than the air that we inhale.
Air enters the body when you inhale (Breathe in) air enters through the mouth and into the lungs. and then exhale (Breathe out) carbon dioxide (CO2)