Oxygen is entered through the mouth and carbon dioxide is released out of the mouth.
The nose.
oxygen enters and glucose is released... follow on instagram @nailsbyisis
it is wher the oxygen and carbon dioxide both enters and exit.:)
The air that enters the lungs is richer in oxygen when it enters the lungs. when it leaves it has more carbon dioxide and less oxygen as the lungs expel carbon dioxde and some unused oxygen.
Oxygen must enter our blood and Carbon Dioxide must leave the blood through our lungs. They do so by diffusion between the cappillaries.
Carbon Dioxide enters the plant through small openings on the undersides of the leaves called stomata.
The oxygen cells Actually the carbon dioxide is removed. Oxygen is taken in by the blood and circulated to the rest of the body.
Alveoli.
carbon dioxide im doing a project now
siol
Alveoli (plural) and alveolus (singular)
Both carbon dioxide and oxygen found in air enters through the stomata. More at Link