Give the path travelled by a molecule of oxygen when it enters the body.
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Explanation:
nose
trachea
esophagus
lungs (bronchi, bronchioles, allular ducts )
diffuse through blood caplaries into blood and then bond with heamoglobin and then provided to the target organs
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1
Answer:
Oxygen enters the lungs, then passes through the alveoli and into the blood. The oxygen is carried around the body in blood vessels. Carbon dioxide moves into the blood capillaries and is brought to the lungs to be released into the air during exhalation
Explanation:
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